head lice
"The product says you do not have to comb after use, but I did anyway.  Next day, tried to return my daughter to school, went to nurse, still nits.  That night, combed again...long blonde hair, strand by strand, under a magnifying light for 6 hours   Next day, tried to return my daughter to school, still nits (very few, but one is all she needed to keep her out of school)  I am not sure which of us burst into tears first...so frustrating.  I have not seen any live lice, so it worked in that sense, but do not believe the packaging that says combing not required.  By the way, I think I killed most of the lice prior to using this product by coating her hair with a mix of olive oil, coconut oil and tea tree conditioner.  This sucks!"