What causes hairless patches around my dog's anus and how to treat?

Question

My dog has hairless patches on on her rear end around her anus What do I treat with. Pet's info: Dog | Mixed Breed Large (61lb +) | Female | spayed | 4 years and 4 months old | 65 lbs

Dr. Massimo Orioles, DVM, Cert AVP, MRCVS · Accepted Answer

Hi, and thanks for your question. This could be due to an allergy, although it could also be infection or mites. First of all, in order to rule out skin parasites, you will need to treat with a high quality flea treatment, then ask the vet to perform a skin scrape - this might reveal an infection or a mite infestation. If all of those came back negative, the next step is to treat the allergy symptomatically and try to discover the cause of the allergy. Three main type of allergies are usually affecting pets: food allergies, flea and parasite related ones and environmental type (allergens coming from trees, pollens, dust etc etc). Some medications can be given by the vet in order to repair any possible skin lesions (like steroids and antibiotics).

What causes hairless patches around my dog's anus and how to treat?

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