Hello Doc, It started with an minor itch in scalp (around 7 days ago), though I don't have any dandruff, slowly it turned to major, and 2 days later, I saw a bump on forehead. Bump was increasing and paining a lot, I thought I might go with "baking soda" so applied 2 times , and it turned red, and slowly it's going (though it still pains). However, the itch has spread to my eyebrows, and eyelids (in addition to scalp and forehead). It becomes sever in night, today I took an antihistamine tablet (cetrizine), but don't see any improvement. I follow a very healthy vegetarian diet, do not smoke, and also exercise regularly. what could be the reason, and what I can do to cure it?