A great thing to use on the raw spots is a light coating of Desitin (diaper rash ointment). I have had basset hounds for 22 yrs and some have had allergic skin problems that look just like her neck area, the bassets would get the rash in their withers, on their stomach, under the arm pits and in the groin area. I have been through a lot of ointment medication, both from the vet and over the counter, but the Desitin seems to stay on the longest, just a thought to trying it, like everyone says you must work from internal to external, keep up with the updates, I’m definitely reading them.