Dreads Hair and Scalp Health
Well I would definitely say the dry weather and your predisposition to dandruff is making your scalp itchy. I also live in a dry area ( the Mojave desert). When I feel too itchy I wash my scalp and hair and I feel so much better. I have also noticed that the longer my locs got, making them heavier and pulling on my scalp, sometimes my head gets itchy. Do you have allergies? Try an allergy pill. I think most important is keeping them clean.