What’s the Best Allergy Med for Dogs?

Allergies in dogs are a common problem that many pet owners face. Dogs, like humans, can suffer from allergies all year round. Allergy symptoms can make your dog miserable, and in severe cases, even lead to chronic ear infections, hair loss, and skin infections. So, what’s the best allergy med for dogs? This guide will provide you with everything you need to know to get your furry friend feeling their absolute best.

Common Allergens That Affect Dogs

Dogs can be allergic to a wide range of allergens. Some of the most common allergens that affect dogs include:

  • Pollen
  • Dust mites
  • Mold spores
  • Flea bites
  • Food ingredients

Identifying the allergen that your dog is reacting to is essential when it comes to finding the best allergy medication for them.

Symptoms of Allergies in Dogs

Identifying allergy symptoms in dogs is the first step in determining if your furry friend needs allergy medication. Some of the most common symptoms of allergies in dogs include:

  • Sneezing and coughing
  • Itchy, red, and inflamed skin
  • Excessive scratching or licking
  • Watery eyes
  • Runny nose

Ear Infections

Allergies can also lead to ear infections in dogs. Some common signs of an ear infection include:

  • Head shaking
  • Scratching at the ears
  • Redness or swelling in the ears
  • Unpleasant odor coming from the ears
  • Discharge from the ears

If you suspect your dog has an ear infection, it’s essential to take them to the vet for proper diagnosis and treatment.

Types of Allergy Meds for Dogs

Once your vet determines that your dog has allergies, they may recommend one or more of the following types of allergy medication:


Antihistamines are one of the most common types of allergy medication for dogs. They work by blocking the effects of histamine in the body, which is what causes allergic reactions. Antihistamines are available in both over-the-counter and prescription forms. Some common antihistamines used for dogs include:

Antihistamine Name Brand Name
Diphenhydramine Benadryl
Chlorpheniramine Chlor-Trimeton
Hydroxyzine Atarax


Corticosteroids are a type of steroid that helps reduce inflammation in the body. They can be very effective at treating allergies, but they do come with potential side effects, so they should only be used under the guidance of a veterinarian. Some common corticosteroids used for dogs include:

Corticosteroid Name Brand Name
Prednisolone Pediapred
Dexamethasone Decadron
Prednisone Deltasone


Immunotherapy, also known as allergy shots, involves injecting your dog with small amounts of the allergen they are allergic to. Over time, this helps to desensitize your dog to the allergen, reducing their symptoms. Immunotherapy is a long-term treatment, and it can take several months to see results. It’s also essential to note that not all dogs are good candidates for immunotherapy.

Choosing the Right Allergy Medication for Your Dog

Choosing the right allergy medication for your dog is essential for ensuring that they get the relief they need. Here are some factors to consider when selecting an allergy medication for your dog:

Type of Allergen

As mentioned earlier, identifying the allergen that your dog is reacting to is crucial for choosing the right allergy medication. For example, if your dog is allergic to flea bites, they may benefit from flea preventative medication rather than traditional allergy medication.

Symptom Severity

The severity of your dog’s allergy symptoms can also impact the type of medication they need. If their symptoms are mild, antihistamines or immunotherapy may be sufficient. However, if their symptoms are more severe, corticosteroids may be necessary to provide relief.

Side Effects

It’s also important to consider the potential side effects of allergy medication. For example, corticosteroids can cause increased thirst and appetite, while antihistamines can cause drowsiness. Talk to your vet about the potential side effects of any medication they are recommending to ensure that they are safe for your dog.

Supplements for Allergy Relief in Dogs

In addition to traditional allergy medication, there are also several supplements that can help alleviate allergy symptoms in dogs. Here are some of the most popular supplements:

Omega-3 Fatty Acids

Omega-3 fatty acids are beneficial for dogs with allergies because they help reduce inflammation in the body. They can be found in fish oil supplements or in certain types of fish, such as salmon and sardines.


Quercetin is a flavonoid that has antioxidant and anti-inflammatory properties. It can help reduce allergy symptoms in dogs by stabilizing mast cells, which release histamine during an allergic reaction.


Probiotics are beneficial bacteria that can help improve gut health. Studies have shown that a healthy gut microbiome can help reduce allergy symptoms in dogs.


Allergies can make your dog miserable, but with the right allergy medication or supplement, you can help alleviate their symptoms and improve their quality of life. Be sure to talk to your vet about the best allergy medication for your dog and consider supplements as an additional option.

FAQs About Dog Allergy Meds

1. Can I give my dog human allergy medication?

No, you should never give your dog human allergy medication without first consulting with your veterinarian. Some human medications can be toxic to dogs, and dosages can be different.

2. How often should I give my dog allergy medication?

The frequency of allergy medication dosing will depend on the type of medication and the severity of your dog’s symptoms. Follow your veterinarian’s instructions carefully.

3. Can I give my dog multiple allergy medications at once?

It’s essential to talk to your vet before giving your dog multiple allergy medications as they can interact with each other and cause adverse side effects.

4. Can I use supplements instead of traditional allergy medication?

Supplements can be helpful for alleviating allergy symptoms in dogs, but they may not be sufficient on their own. Be sure to talk to your vet about using supplements in conjunction with traditional allergy medication.

5. Can some allergies go away without medication?

It is possible for some allergies to go away on their own, but it’s essential to consult with your veterinarian to ensure that your dog isn’t suffering unnecessarily while waiting for an allergy to resolve on its own.


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