Could be the sulphites in the shampoo try a sulphite free shampoo they sell them in most drug stores or online ..
I know it isn't dandruff or head lice. I've had my scalp checked several times. It didn't start itching until I was told I had RA a year and a half ago. That's the thing I know. Thanks for your help anyway.
hi, there are several diseases that can vause itching : head lice, tinea capitis, even some kind of allergy so it's really hard to diagnose with so little info