my niece has had this rash for about a month now. It started in the diaper area and is now on the back of her legs in the knee crease and is on chest and stomach on her face cheeks ears and the creases of her arms at the elbows. they were told the first time that it was hand foot and mouth, was treated and it got worse then they were told it was scabies was again treated and nothing now they are saying it is tinea corporis but the rash looks nothing like the ringworm infection they are saying she has. We are at a loss of what it could be.