I have had a very itchy scalp on and off for several months. It started at the hairdressers and I think it was a reaction to a leave in conditioner she used. It’s never really been the same since. I have tried head and shoulders scalp comfort, aveeno and nizoral which have all worked for a while and then stopped. I don’t have any dandruff and my hairdresser says my scalp looks normal, it’s just horrendously itchy. Does anyone have any suggestions of anything else I could try?