My DD is 17 in 6th form doing great. she has long hair but on her scalp has what looks like a white crust. Around 6 months ago I finally got her the doctors he gave her cream which has not worked. The scale has now come and gone from her neck but is now on her eye. My question is should I carry on pushing for us to go back to the doctors. She's so adamant she doesn't want to as the cream didn't work. But I can't help feeling what if it spreads more. She's 17 and if I bring it up it causes arguments which is pointless. Any ideas thanks