I treated both children for lice after a child in oldest class got it neither had anything still no signs it been a week but after the treatment my 2 year old who has sensitive skin and bad ecezma got a rash on scalp did the treatment cause it cause still no nits or lice it was never present

You treated for live and they didn't have lice?

You'll need to go to your doctor. The chemicals in lice treatment are harsh. They have to be in order to kill the lice.

Why did you treat for lice when they didn't have it?