Hives spreading while on medication.
Hi all, I'm hoping for a little bit of advice although unsure if this is the right place. I've always had skin issues but only had hives as allergic reaction responses which resolved fair quickly, so not chronic. Recently I dyed my hair and also returned to our home after 3 week of no one living there. First night in the house I got hives which spread overnight. I went to the doctor who said it was probably the hair dye and prescribed me medication. I have taken two doses of the medication but I've woken up during the night and the hives, which seemed to calm down when we were out of the house yesterday, have now flared up and significantly spread again during the night.
Is this normal or should I be more worried?