Hiya. I dong know what I’ve been dealing with as the doctors, specialists and dermatologist hadn’t a clue. It was some sort of mite that was really hardy and nothing killed it completely. Then I used 100 per cent alcohol hand sanitizer- I put it in a spray bottle. Wow what a difference. After a week of using it is almost gone. I had tried all the creams,pemetherin etc but this was what actually worked. Good luck.