From the last 3 months I have been scratching myself quite a lot. It started with my scalp scratching and since I have a dandruff problem I thought it was due to it. But after a while i was scratching all over myself. The area that itches turns red and swells a little like when you get a mosquito bite. My mother suggested that it must be an allergy so i took a Cetrezine tablet and the problem went away. But the thing is i get allergies almost every alternate day now and popping tablets all the time. I am unable to locate what triggers my allergies and I'm scared now that it might be a symptom of something far worse. Please help!