10 Best Vitamins For Itchy Dogs in 2026

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The best overall supplement for itchy dogs is Zesty Paws Senior Dog Allergy Chews, which combines colostrum, astragalus, and EpiCor Pets for immune and histamine support while also including five probiotic strains for gut health. For budget-conscious owners, the BARK&SPARK Omega 3 Fish Oil Chews offer long-lasting value, while the Petsology Dog Allergy Relief Chews provide a veterinarian-formulated option for broad anti-itch support.

Itching in dogs is rarely just a surface problem. The root cause often involves a mix of environmental allergies, food sensitivities, and gut imbalances. A supplement that addresses only one of these factors may leave your dog still scratching, licking, or losing sleep.

This guide is built on a comparison of specifications, manufacturer claims, and patterns in owner feedback. We focused on what actually matters for itchy dogs: omega-3 content, probiotic strains, immune-supporting ingredients like colostrum, and whether the formula targets the specific type of itching your dog experiences.

Top 10 Vitamins For Itchy Dogs in the Market

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The Best Vitamins For Itchy Dogs, Reviewed

#1Best Overall

Zesty Paws Senior Dog Allergy Chews

Zesty Paws Senior Dog Allergy Chews
FormSoft Chews
Count90 Chews
Key IngredientsColostrum, Quercetin, Vitamin C, Yucca
TargetSenior dogs with itchy skin and ears
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What We Like

  • Includes colostrum and astragalus for histamine support
  • Contains EpiCor Pets for immune defense
  • Five probiotic strains plus prebiotic for gut health
  • Formulated specifically for senior dogs

Trade-offs

  • Designed for seniors, not ideal for puppies or adults

A chews formula that packs colostrum, astragalus root, and EpiCor Pets into one soft bite means you get three different immune-supporting angles without juggling separate bottles. That combination targets normal histamine levels while feeding beneficial gut bacteria. This layered approach makes sense for an older dog whose system has been dealing with seasonal allergies for years. It also includes quercetin and yucca, both known for supporting seasonal allergy relief, so you are covering skin, ears, and digestive health in a single treat.

The trade-off is that this is a senior-specific formula. If your dog is still in its prime, the nutrient profile may not match its needs as closely as something like the BARK&SPARK Omega 3 Fish Oil Chews, which focuses on omega-3s for general skin and coat support. The salmon flavor is a common allergen trigger for some dogs, and the soft chews need to be stored in a sealed container to keep their texture. For owners of an older dog dealing with itchy skin and ears, the targeted ingredient stack makes this the most complete option in the guide.

Best for: Senior dogs with itchy skin and ears who need immune, histamine, and digestive support in one chew. Not ideal for puppies, adult dogs, or dogs with a known salmon sensitivity.

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#2Best Value

BARK&SPARK Omega 3 Fish Oil Chews

BARK&SPARK Omega 3 Fish Oil Chews
Omega per serving500 mg (EPA+DHA)
Count180 chews
SupplyUp to 3 months
Made inUSA
IngredientsHuman grade
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What We Like

  • 500 mg Omega per serving
  • 180-count jar lasts 3 months
  • Human-grade ingredients made in USA
  • Natural flavors for picky eaters

Trade-offs

  • Does not include probiotics for gut-related allergies
  • Not suitable for dogs needing probiotic allergy support.

At 500 mg of Omega (EPA plus DHA) per chew and 180 treats per jar, this supplement stretches to a three-month supply without asking you to keep reordering every few weeks. That long runway makes it a practical choice for anyone managing a dog with dry, itchy skin or seasonal hot spots, especially when you want something simple that works alongside regular food. The human-grade ingredients and US manufacturing add a layer of trust, and the natural flavoring is aimed squarely at dogs who turn up their nose at pills or powders.

This chew is built around Omega-3s for skin and coat, so if your dog’s itching stems from gut issues or yeast imbalances, you won’t get the multi-angle support that a probiotic blend offers. For straightforward itch relief from dry skin without the bells and whistles, this is where the value lands.

Best for: Dog owners looking for an affordable, long-lasting Omega-3 supplement to tackle dry skin and shedding. Not ideal for dogs needing probiotic or gut-focused allergy support.

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#3Best Anti-Itch Formula

Petsology Dog Allergy Relief Chews

Petsology Dog Allergy Relief Chews
FormSoft chews
Key IngredientsOmega 3 Fish Oil, probiotics, vitamins
Made InUSA, FDA-registered facility
Target IssueItching, hot spots, dry skin, immune support
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What We Like

  • Omega 3 Fish Oil for skin relief
  • Probiotics support immune health
  • Formulated by veterinarians
  • Made in FDA-registered US facility

Trade-offs

  • Targets general itching, not specific allergens
  • Not specialized for senior dogs or specific allergens

Omega 3 Fish Oil, probiotics, and essential nutrients pack each soft chew, tackling itchy skin from two angles: soothing surface irritation and backing up the immune system so your dog’s body can handle allergens better. That dual approach makes this a smart pick for dogs whose scratching, hot spots, or paw licking stem from seasonal or environmental triggers, not just dry coat. It also helps that the formula was designed by veterinarians and produced in an FDA-registered facility here in the US, which gives you a clearer line on quality control than some imported supplements.

For straightforward, vet-formulated itch relief with immune backup, this earns its place as the anti-itch specialist in the guide. Compared to Zesty Paws Senior Dog Allergy Chews, which explicitly targets older dogs with probiotics and salmon, this formula leans broader. It is a good fit if your dog is not a senior, but less specialized if you are managing age-related immune decline.

Best for: Dog owners looking for a veterinarian-formulated, USA-made chew that combines Omega 3s and probiotics for broad anti-itch and immune support. Not ideal for those who need a clearly stated daily serving size or a formula tailored to senior dogs.

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#4Best Skin & Coat Support

Zesty Paws Salmon Oil Fish Oil Chews

Zesty Paws Salmon Oil Fish Oil Chews
Count90 chews
Key IngredientsSalmon Oil, Biotin, Vitamin E
Omega SourceEPA and DHA from Salmon Oil
FlavorBacon
Weight0.7 pounds
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What We Like

  • Salmon oil provides EPA and DHA
  • Includes biotin and vitamin E
  • Supports skin, coat, joints, and immune system
  • Bacon-flavored soft chews

Trade-offs

  • No probiotics for digestive-related allergies
  • Lacks probiotics for digestive allergy support

This 90-count bottle of bacon-flavored soft chews delivers salmon oil as a source of EPA and DHA, plus biotin and vitamin E, to support skin and coat health. The formula also includes support for hip and joint health and immune function, so it covers multiple areas in one chew. It is designed for dogs whose needs align with these ingredients, rather than for those requiring probiotics or other additional components.

The Zesty Paws Salmon Oil Fish Oil Chews provide EPA and DHA from salmon oil to support skin, coat, and joint health, so dogs with dry, itchy skin or a dull coat may see improvement. The chews include vitamin E for immune support and biotin to boost coat shine, covering the basics for a healthy dog. For dogs whose allergy symptoms stem from digestion or yeast issues, a product with probiotics or prebiotics would be a better fit.

Best for: Dog owners wanting an omega-3 supplement for skin and coat health with added joint and immune support. Not ideal for dogs whose itching stems from gut or digestive issues.

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#5Best Probiotic for Itchy Skin

BetterWild Allergy Dog Chews

BetterWild Allergy Dog Chews
FormSoft chews
Key IngredientsColostrum, omega fatty acids, probiotics
Protein SourceNo beef or chicken
Count30 chews
OriginMade in USA
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What We Like

  • Clinically studied probiotic formula
  • Includes bovine colostrum for immune support
  • Free from beef and chicken proteins
  • Omega fatty acids from wild Alaskan salmon oil

Trade-offs

  • 30 chews per container requires frequent reordering
  • Not suitable for dogs needing chicken or beef flavors

A clinically studied probiotic formula sets this apart from many allergy chews that rely solely on omega oils or antihistamines. By pairing gut-supporting probiotics with bovine colostrum and wild Alaskan salmon oil, it targets the immune system’s root role in itchy skin, paw licking, and seasonal sensitivities. This makes it a strong fit for dogs whose allergies seem tied to digestive imbalance or who need more than surface-level skin support. It is especially useful for those with sensitivities to beef or chicken proteins common in other treats.

A 30-count bag provides about a month of daily use for one dog, so you will be ordering regularly. The soft chew texture makes it easy to give. If your dog’s itching stems from gut health issues, this probiotic-first approach is worth the extra attention to refills.

Best for: Dogs with itchiness linked to gut health or protein sensitivities. Not ideal for owners who want a large supply per bottle or dogs that refuse soft chews.
#6Best Omega with Probiotics

Pet Honesty Omega 3 Fish Oil Chews

Pet Honesty Omega 3 Fish Oil Chews
Size90 count
Key IngredientsSalmon Oil, Biotin, Vitamin E, Vitamin C, Probiotics, Pumpkin
Made inUSA
Dimensions3.7 x 3.7 x 3.4 in
Weight0.6 lb
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What We Like

  • Contains probiotics and pumpkin for digestion
  • Includes biotin and vitamin E for skin
  • Vet-recommended and NASC-compliant
  • Zero corn, wheat, or soy

Trade-offs

  • No joint support for senior dogs
  • Not suitable for dogs with corn allergies

A 90-count container of chews that pack salmon oil, biotin, vitamin E, probiotics, and pumpkin into one treat means you don’t have to juggle multiple bottles to tackle itchy skin, dull coat, and digestive sensitivity at the same time. This makes it a smart fit for owners who want a single supplement that addresses both the external signs of irritation and the internal gut health that often drives them. The product is manufactured in the USA and is NASC-compliant, which may appeal to buyers looking for quality standards.

The 90-count container weighs just 0.6 pounds, so it’s light enough to toss in a travel bag or keep in a kitchen cabinet without taking up much space. That smaller size means you’ll be reordering sooner than if you bought a heavier jar, but the salmon flavor is designed to appeal to picky eaters. For someone who wants a USA-made chew that tackles skin health and digestion together, this is a straightforward option.

Best for: Dog owners wanting a single chew that combines omega-3s, biotin, and probiotics for itchy skin and digestive support.

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#7Best Fast-Acting Relief

Vet Promise Dog Allergy Relief Chews

Vet Promise Dog Allergy Relief Chews
FormSoft chew
Key IngredientsColostrum, Omega-3, Probiotics
Target UseItching, paw licking, hot spots, seasonal allergies
ManufacturingUSA, FDA-registered facility
Age RangeAll ages and sizes
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What We Like

  • Contains colostrum for immune support
  • Vet-formulated in FDA-registered facility
  • Suitable for puppies and seniors

Trade-offs

  • Requires daily use for sustained relief
  • Focuses on allergy symptoms, not general coat shine

The inclusion of colostrum sets these chews apart from many allergy supplements that rely solely on Omega-3s. Colostrum supports immune function from the inside out, which can help address the underlying causes of itching, paw licking, and hot spots. For dogs dealing with seasonal flare-ups or heavy shedding, this targeted immune support may offer a more direct approach than a general skin supplement.

This is a daily-use supplement aimed squarely at allergy-driven itching, not a general skin-and-coat booster. If your dog’s main issue is a dull coat or dry skin without the scratching and licking, something like BARK&SPARK Omega 3 Fish Oil Chews delivers a higher dose of straight Omega-3s for that purpose. But when the goal is breaking the scratch-itch cycle, the colostrum and probiotic blend in Vet Promise gives you a more targeted approach.

Best for: Dogs suffering from active itching, paw licking, or hot spots who need fast relief during allergy season. Not ideal for owners looking for a general coat shine supplement without allergy symptoms.

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#8Best Seasonal Allergy Support

BARK&SPARK Dog Allergy Relief Chews

BARK&SPARK Dog Allergy Relief Chews
FormSoft chewable bites
Count120 chews
Age12 weeks and up
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What We Like

  • Soft chews avoid pill battles
  • Pairs fish oil with quercetin for itch relief
  • 90-day guarantee backs the formula

Trade-offs

  • Results require daily use over time
  • Not formulated for senior-specific needs

A formula that pairs omega-3 EPA and DHA from fish oil with bromelain, turmeric, pumpkin, and grape seed extract means this chew tackles seasonal allergies from more than one angle. The fish oil supports skin moisture while the other ingredients work together, so you’re not just covering the itch, you’re helping the skin barrier recover. For a dog that starts scratching when the pollen count climbs, that dual approach can break the cycle of licking and chewing without you wrestling a pill into their mouth twice a day. The soft, treat-like texture makes it simple: hand one over, and they think they’re getting a reward.

The catch is that consistency matters. These chews are designed to build steady support over time, not deliver overnight relief, so you need to stick with the daily routine for a few weeks before judging results. That makes them a better fit for seasonal maintenance than for a sudden flare-up where you want fast knockdown. The formula is made for dogs from 12 weeks up to adult, so it covers most of the household, but it doesn’t include probiotics or other senior-specific additions that some older dogs might benefit from. If your dog is a young to middle-aged adult with seasonal itch, this is the more focused pick.

Best for: Dog owners looking for a daily, soft-chew allergy supplement that combines fish oil with quercetin, bromelain, turmeric, pumpkin, and grape seed extract for seasonal itch. Not ideal for those wanting a senior-specific probiotic blend or immediate relief from acute flare-ups.

Product photos

#9Best Immune & Skin Support

Solid Gold Dog Allergy Chews

Solid Gold Dog Allergy Chews
FormSoft chew
FlavorBacon
Count120 chews
Key IngredientsFish oil, probiotics, colostrum, astragalus
Weight0.6 pounds
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What We Like

  • Bacon flavor for picky dogs
  • Omega-3 from fish oil for skin and coat
  • Probiotics, colostrum, and astragalus for immune and histamine support
  • Soft chew texture for easy feeding

Trade-offs

  • Daily use required for results
  • Not a standalone solution for severe allergies

These 120-count soft chews combine fish oil for coat health, probiotics for digestion, and colostrum plus astragalus for immune and histamine support, as listed on the label. That means the formula addresses skin from multiple angles, coat, gut, and immune response, rather than just masking the itch. The bacon flavor and soft texture make them easy to give to picky dogs of any age dealing with seasonal or environmental sensitivities.

Each chew delivers fish oil for omega-3s, probiotics, colostrum, and astragalus to support skin, coat, digestion, and a balanced histamine response, all in a soft bacon-flavored treat. That means you get one daily chew that addresses itchy skin, licking paws, seasonal sensitivities, and coat health without juggling multiple supplements. If your dog is a senior with more complex needs, the other-products list shows Zesty Paws Senior Dog Allergy Chews is available, but those are a different product with different dimensions and weight.

Best for: Dog owners who want a single soft chew that combines omega-3, probiotics, colostrum, and astragalus for skin, coat, digestion, and histamine support during seasonal or environmental changes
#10Best Probiotic for Seasonal Allergies

PetLab Co. Allergy & Immune Probiotic Chews

PetLab Co. Allergy & Immune Probiotic Chews
FormSoft Chews
Count30 chews
Key IngredientsPrebiotics, probiotics, postbiotics, borage oil, krill oil, vitamin E
FlavorPork
Weight0.3 pounds
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What We Like

  • Triple biotic blend (pre-, pro-, postbiotics)
  • Omega-3s from borage and krill oil
  • Vitamin E for antioxidant support
  • Made in the USA

Trade-offs

  • Pork flavor not suitable for pork-sensitive dogs
  • Contains pork, which some dogs cannot eat

Each chew contains prebiotics, probiotics, and postbiotics, plus omega-3 fatty acids from borage and krill oil and vitamin E for antioxidant support. That layered gut-and-skin support is what makes this a smart first stop for dogs whose itching, paw licking, or smelly ears seem tied to seasonal shifts rather than year-round triggers. The 30-count bottle keeps the commitment low if you want to see how a probiotic approach works for your dog.

At 0.3 pounds for 30 chews, you’ll reorder sooner than with a 90-count bottle like Zesty Paws Senior Dog Allergy Chews, assuming a similar daily dose. The pork flavor won’t work for every dog, so this smaller supply lets you test the probiotic before committing to a larger bag. If your pup does well on it, just set a monthly restock reminder.

Best for: Dog owners wanting a targeted probiotic chew to try for seasonal allergy support. Not ideal for households that avoid pork flavors.

How We Evaluated Vitamins For Itchy Dogs

We started by identifying the most commonly recommended ingredient categories for canine itching. Omega-3 fatty acids support skin barrier health, probiotics address the gut-skin connection, colostrum and astragalus help with histamine and immune support, and vitamin E provides antioxidant protection. Each supplement was then assessed against those categories.

Our three main criteria were ingredient potency, formula completeness, and suitability for the dog’s age and allergy type. A chew with 500 mg of omega-3 per serving scored higher than one with vague oil sources. A formula that combined probiotics with colostrum earned more weight than a single-ingredient product, provided the ingredients were backed by veterinary formulation.

We also looked at patterns in owner feedback, what people reported about their dog’s scratching behavior, coat condition, and whether the supplement worked within a reasonable time frame. This is a research-led evaluation, not a hands-on test. We recommend cross-referencing our picks with your veterinarian, especially for dogs with severe allergies or underlying health conditions. For a deeper look at the category, see our guide on dog vitamins for itchy skin.

What To Look For In Vitamins For Itchy Dogs

Choosing the right supplement means matching the ingredients to your dog’s specific type of itching. Not all itch is the same, and not all supplements cover every angle.

Prioritize omega-3s for skin barrier repair, probiotics for gut-related allergies, and colostrum or quercetin for histamine and seasonal support. Match the formula to your dog’s age, size, and primary symptom.

Omega-3 Fatty Acids

Omega-3s, specifically EPA and DHA from fish oil, are the most researched nutrients for canine skin health. They reduce inflammation at the cellular level and support a healthy coat. Look for a clearly stated milligram amount per serving. The BARK&SPARK Omega 3 Fish Oil Chews deliver 500 mg per chew, while options like Zesty Paws Salmon Oil Chews add biotin and vitamin E for extra coat support. For more on this, read about omega-3 for itchy skin.

Probiotics and Gut Health

The gut-skin axis is real. A dog with a balanced gut microbiome is less likely to develop allergic reactions that show up as itching. Look for multiple probiotic strains and a prebiotic source. The BetterWild Allergy Dog Chews use a clinically studied probiotic formula with bovine colostrum, while PetLab Co. Allergy & Immune Probiotic Chews include a triple biotic blend with pre-, pro-, and postbiotics. Our guide on probiotics for itchy dogs covers these options in more detail.

Immune and Histamine Support

Ingredients like colostrum, astragalus, and quercetin help modulate the immune system’s response to allergens. Colostrum provides antibodies that can reduce histamine release, while quercetin acts as a natural antihistamine. The Vet Promise Dog Allergy Relief Chews and Solid Gold Dog Allergy Chews both include colostrum for this purpose.

  • Check the serving size, some chews require two per day for a medium dog, others just one.
  • Confirm the chew is made in a facility with quality certifications (FDA-registered, NASC-compliant).
  • Avoid formulas with beef or chicken if your dog has known protein sensitivities.
  • Look for a money-back guarantee, especially if your dog is a picky eater.
  • Match the formula to the season, quercetin-based chews work well for seasonal allergies, while colostrum-based ones are better for year-round immune support.

A supplement that covers omega-3s, probiotics, and immune support in one chew is usually the most practical choice for owners who don’t want to juggle multiple bottles.

Vitamins For Itchy Dogs Compared

The table below compares the supplements on key features, omega-3 content, probiotic strains, immune ingredients, and best-use scenario, so you can see at a glance which formula fits your dog’s needs.

ProductFormCountKey Ingredients
Zesty Paws Senior Dog Allergy ChewsSoft Chews90 ChewsColostrum, Quercetin, Vitamin C, Yucca
BARK&SPARK Omega 3 Fish Oil ChewsN/A180 chewsHuman grade
Petsology Dog Allergy Relief ChewsSoft chewsN/AOmega 3 Fish Oil, probiotics, vitamins
Zesty Paws Salmon Oil Fish Oil ChewsN/A90 chewsSalmon Oil, Biotin, Vitamin E
BetterWild Allergy Dog ChewsSoft chews30 chewsColostrum, omega fatty acids, probiotics
Pet Honesty Omega 3 Fish Oil ChewsN/A90 countSalmon Oil, Biotin, Vitamin E, Vitamin C, Probiotics, Pumpkin
Vet Promise Dog Allergy Relief ChewsSoft chewN/AColostrum, Omega-3, Probiotics
BARK&SPARK Dog Allergy Relief ChewsSoft chewable bites120 chewsN/A
Solid Gold Dog Allergy ChewsSoft chew120 chewsFish oil, probiotics, colostrum, astragalus
PetLab Co. Allergy & Immune Probiotic ChewsSoft Chews30 chewsPrebiotics, probiotics, postbiotics, borage oil, krill oil, vitamin E

Frequently Asked Questions

What vitamins help dogs stop itching?

Omega-3 fatty acids from fish oil are the most effective vitamin-type supplement for reducing skin inflammation and itching in dogs. Probiotics support gut health, which can reduce allergy symptoms, while colostrum and quercetin help modulate histamine responses. A combination formula that includes all three often works better than a single-ingredient product.

Can I give my dog human vitamins for itchy skin?

No. Human vitamins often contain dosage levels or additives that are unsafe for dogs. Some human omega-3 supplements use ingredients like xylitol, which is toxic to dogs. Always use a supplement formulated specifically for canine body weight and metabolism.

How long does it take for dog allergy chews to work?

Most owners report noticeable improvement within two to four weeks of daily use. Faster-acting formulas like Vet Promise Dog Allergy Relief Chews may show results sooner for active itching, but sustained relief typically requires consistent daily dosing. If you see no change after six weeks, consult your vet.

Are probiotics or omega-3s better for dog itching?

Neither is universally better, they address different causes. Omega-3s reduce skin inflammation and strengthen the skin barrier, while probiotics balance gut bacteria that can trigger allergic reactions. Many dogs benefit from a supplement that includes both, like the Pet Honesty Omega 3 Fish Oil Chews or the Petsology Dog Allergy Relief Chews.

What ingredients should I avoid in dog allergy supplements?

Avoid supplements with artificial colors, preservatives like BHA or BHT, and unspecified “poultry” or “meat” sources. If your dog has a known protein sensitivity, avoid formulas with beef, chicken, or pork. Also avoid supplements that list “proprietary blend” without disclosing individual ingredient amounts.

The Bottom Line

The Zesty Paws Senior Dog Allergy Chews earn the best overall spot because they combine immune support (colostrum, astragalus, EpiCor Pets) with five probiotic strains, a rare level of completeness in a single chew. If your dog is a senior who scratches, licks paws, or has recurrent ear issues, this is the formula to try first.

For budget-minded owners, the BARK&SPARK Omega 3 Fish Oil Chews deliver 180 servings of 500 mg omega-3 at a price that beats most competitors. If your dog’s itching is clearly seasonal, the BARK&SPARK Dog Allergy Relief Chews add quercetin and turmeric for targeted relief. For gut-related itching, the BetterWild Allergy Dog Chews offer a clinically studied probiotic with colostrum and no beef or chicken proteins.

The single most important factor is matching the supplement to your dog’s primary symptom. If the itching is year-round with red skin and hot spots, prioritize omega-3s and colostrum. If it flares up seasonally with sneezing and watery eyes, look for quercetin. If your dog has loose stools alongside the scratching, start with probiotics. For more guidance, see our full list of best vitamins for itchy skin.