It will need to be kept clean and managed until it decides to leave. It comes and goes and
seems to react to sunlight (kils fungus), and
Nizoral seems to do a pretty good job, but you need to order the 2% version from a Canadian dot com, the 1% in USA isn't as effective.
At night I apply vaseline or over the counter cortizone type creams to keep it relatively soft, then I remove the flakes.
It's a wonderful existence. If the dermatoligist here can offer any help, I'd apreciate it.