My daughter is 11 and dances at least 6 times a week, Irish, ballet tap, modern and jazz, she has had a lump appear on the top of her foot fr several weeks now, it is about the size of an ten pence piece, it s causing her so much sin, she has been resting it, and not dancing for several weeks now and align ibroprofen, but nothing is helping, Wharton could it be? She had a dance exam in 2weeks and is worried so can't do it.