how r u using it ?
sometimes when you just start you can get some nasty side effects (saborea and stuff like that),
it usually occours when you use it straight up for 3 times a week and let it stands on the scalp for 5 min,
try starting with 2 times a week and wash it off after 2, 3 minutes max.
than slowly go up to 3xweek, 5xminutes.