Yes, it is possible for your dog to be allergic to Seresto. Allergy to certain ingredients in flea, tick, and mite products has been known to exist. Seresto is a type of flea and tick collar and, as with any product applied directly onto the skin of an animal, there can be potential side effects for some dogs. These include skin irritation or inflammation at the site where the collar is worn. It is also possible for a dog to experience an allergic reaction due to the active ingredient in Seresto collars which is imidacloprid. If your pet displays any symptoms such as itchiness or hives after wearing a Seresto collar then you should seek veterinary advice as this may indicate that he/she is having an allergic reaction. Your veterinarian will be able to help determine if an allergy testing kit would be beneficial or if your pet needs an alternative form of flea prevention or treatment.


It’s possible, but it’s not likely. Some dogs are allergic to the active ingredients in flea and tick preventatives, like Seresto. Before you give your pup Seresto, research the ingredients and talk to your veterinarian. They’ll help determine if this product is a good fit for your dog. Signs of an allergic reaction may include severe itching, redness or swelling at the application site, or an increase in respiratory rate such as panting or coughing. It’s important to stop using the product and contact your vet immediately if you see any of these side effects. you should always consult with your vet before giving your pup any flea and tick preventive, so make sure to include Seresto in that discussion.

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