7yr old DD has premature adrenarche - the symptoms of puberty but not real puberty, in essence. She developed pubic hair age 5 which doesn't bother her, but now has tufts of thick arm pit hair, which do. It's not all over the armpit, just patches about the size of a 5p. Obviously this is more difficult for her to hide than the pubic hair, and she's conscious during dance, swimming and gymnastics classes. Any ideas on the best way to remove?