Welcome to YT, last year I to was using a oatmeal shampoo because years back I read it was
gentle on the skin and could be used for frequent bathing.
I was bathing my boy once a week, after 3 weeks of bathing he started to bite at his back, so, off to the vet we go. My vet said it was the oatmeal shampoo my dog is allergic to it as he also has allergies as well. I am now using Hylyt shampoo and Hylyt bath spray, vet prescribed and can only be gotten from a veterinarian. This shampoo can be used every day if needed, the Hylyt bath spray is a spray bath, spray it on, rub it in,towel dry then brush, this is good for cold weather when frequent bathing is not necessary, or in between baths in the warmer months. No more dry skin, no more biting himself. Oatmeal is a grain, some dogs are allergic to grains.