I seem to have this issue every winter, my old boy will get chunks of dandruff on his back, the chunks are big, and when I remove them some of the hair will come off leaving a red and bleeding bald spot. I groom him up to three times a week, but I think the brushing makes it worse, I will then give if a medicated bath, most of the time it will clear up right away, and sometimes not,
I am looking for any suggestions on preventing this from happening in the first place.
That does not sound like dandruff to me. Have you seen a vet, preferably a canine dermatologist?
Sharon, Blaise and Diesel.
No, it doesn't sound like dandruff. But if it was, a common problem in winter is overheated and too dry houses leading to dry skin. It wouldn't hurt to check out that angle with a hygrometer, if you are in a cold winter area.