hello, I am not an expert on this subject however one thing I might suggest is topical application of Colloidal Silver . I have seen Colloidal Silver applied topically work absolute miracles with all kinds of different skin disorders, Burns, cuts etc.
It's very easy to put some in a spray bottle and sprinted on whatever area is affected. the more times during the day it is applied, the more affected it is. If you applied only once or twice, it's not very effective. It really needs to be applied numerous times
I can guarantee you that would work, but I can tell you it certainly won't hurt
Another thing you might look into is purple emu oil