One of my false perculas has developed a soft, white "mold" looking substance on its head. It's impossible to get a picture of this guy but I will try to describe it as best as possible. It is almost like a small, white ripple/ridge on its forehead. It appears to be raised off the body a very small amount. It has had something similar in the past and I was told to use a Q-tip to apply hydrogen peroxide to her head, which seemed to solve the problem in about a week. It has been a month and has now reappeared. Does anyone have an idea as to what this infection is and how to cure it completely?