Ok, I have taken Harley our 3 yr old Rot to the Vet, I don't know how many times. I have done endless research online to try to help him. He seems to have dry skin because there are flakes of dandruff on him. I have tried everything.
They vet always does the comb test & says he does not have fleas. But, how do I know it is not mange? The vet has never said one word about mange. Mange or just dry skin?
Rottweilers are a breed that are inclined to suffer from Canine Allergies and skin problems are one of the most common symptoms.
It could be an allergy to something like a shampoo or to a food ingredient, inhalant allergy or something similar. I think this is the most likely problem. As your dog doesn't have fleas then the only other probably cause could be overbathing as Rotties have delicate skin and bathing too often, or using a medicated or unsuitable shampoo can also result in skin irritation.
Mange doesn't usually result in just flaky, dry skin. In that situation you would likely also see a rash, or bare/bald spots developing. First on the face, head, muzzle or front legs and spreading to the rest of the body. If you do notice these symptoms then ask your vet for a skin scraping to be taken and tested for mites. However, it sounds as though your vet has examined Harley several times and if Mange was a possibility would likely have already tested for it.
Check out the link to the Canine Allergies page at the top of this posted reply for tips and advice on dealing with dog allergies and the resulting skin irritation.
Hope this helps, best of luck with Hugo.