My dr prescribed clindamycin phosphate 1% to apply once daily (It is a topical solution) for the rash that I have on my head and back. It seems to help a little but is not strong enough. I will have to go back to see what else he can do. I've been trying to get rid of this rash for years now. It's horribly painful and burns and itches too. And on top of that I have a new rash on my back that burns alot especially in the shower. For some reason head and shoulders shampoo helps alleviate the pain and itching for both rashes but is also not strong enough to get rid of the rashes. I'll let you know what my dr says next. Maybe it might help you.