About 4 or 5 weeks ago, my scalp became dry and flaky and I noticed that my scalp felt sort of rough/kind of bumpy but no sores but almost like the feel of a callous. So I used Selsum Blue a few times but it only help with the flakiness. Three times I massaged an astringent on my scalp before washing my hair and it did stop the itching for about 24 hours. The last thing I tried was Tea Tree shampoo. My scalp is still rough and itches all the time. Last night I tried to get a little of one of the bumps to flake off and get under my nail but it didn t happen. In fact, it kinda wanted to bleed. The roughness is almost completely covering my scalp. Could I have a fungus?