I wipe the area down with mild alcohol if he has any scrapes.
Then I clean with vet suggested shampoo called Allergroom.
I also rub in coconut oil in very dry areas.
The itching is reduced and any areas where the fur has thinned, grows back.
He has had this problem every winter. When it rains I take advantage to give him the entire process outside. Much easier than in the shower. Plus rain, if warm, is good for both of us. 8-)
Love All Life, Thank You For Posting! :)