How to treat dog allergies Antihistamines are over-the-counter (OTC) medications such as Benadryl, Claritin, Allegra, and Clarinex OTC that can help relieve itching, sneezing, and runny nose. Nasal corticosteroids such as Flonase (now available over the counter) or Nasonex may reduce inflammation and control symptoms.
What can I give my dog for an allergic reaction?
Benadryl is a great medication for use in dogs with mild-to-moderate allergies. Seasonal allergies, food allergies, environmental allergies, and allergic reactions to snake and insect bites all respond to Benadryl in most cases.
How long do allergic reactions last in dogs?
In mild cases, the hives will generally disappear within 12-48 hours after contact with the allergen. However, because of the risk that the reaction can worsen to dangerous swelling of your dog's airways or a serious allergic reaction called anaphylaxis, you should seek out treatment any time you see hives on your dog.
What does an allergic reaction in a dog look like?
Clinical signs seen most commonly with this are redness of skin itself, itchiness, or even the presentation of hives (small raised red bumps over the skin).
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