Why is my cat's recurring hair loss & red skin eosinophilic granuloma?
Hello. It is very difficult to diagnose a skin problem just by looking at it, & certainly harder by a picture. If this is similar to what your other cat has, then I might be suspicious of a mange mite called Demodex gatoi. I would first talk to your vet about treating both cats ( & any others in the house ) with Bravecto, just to rule this out ( it is also great for fleas). For EG, some cats will respond nicely to occasional steroid injections. You can also do a hypoallergenic diet trial to rule out a food allergy. Antihistamines sometimes will control symptoms, especially Certirizine ( your veterinarian can recommend a dose ), & some cats are being treated with a relatively new medication for allergies in dogs called Apoquel. So, once your veterinarian has confirmed what the skin lesions are, treatment can be started. Thank you for using Petco Pet Education Center, formerly Petcoach.
Updated on September 23rd, 2025