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My dog is itching, biting his back, and losing hair. What's the cause?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | neutered | 30 lbs

Is it ok to put sulphur oitment on my dog? He keeps itching and biting his back and now hair is missing.

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1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on July 20th, 2017

Sulphur ointment would not be a good idea - that is more for acne. If he is biting his back there is something underlying that is causing him to do that. Honestly my best guess is fleas. That is a very common area for fleas to congregate on a dog causing irritation. I would recommend you use a topical flea treatment like Frontline (pet armour) or Advantage. Wait 24 hours and then you can bathe him with a medicated shampoo like this Duoxo Calm. It also comes as a leave-on mousse product if you don't want to bathe him. If no improvement after doing that he really needs to see a vet. I hope this helps. Best wishes!

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