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. 23 нояб. 2021 г.
How long do dog allergy symptoms last?
The initial allergy attack can last around two weeks until you find a new baseline, but that new baseline does not include immunity.
When should I take my dog to the vet for an allergic reaction?
Signs of severe allergic reactions that warrant an immediate visit to an emergency veterinarian include:1Collapse.2Difficulty breathing due to inflammation or swelling of the throat/airway.3Shock (e.g., an elevated heart rate, low blood pressure)4Abnormal heart rhythm.
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