You have Scalp folliculitis. I'm still currently dealing with the same problem, though it's gotten much better thanks to going to a dermatologist. First he gave me evoclin foam, which I still use twice a day. It took a bit of time to work, but I saw a massive improvement. I still wasn't satisfied though, as I still got minor break-outs from time to time. I decided to get a second opinion from another dermatologist. He prescribed me Sulfameth/Trimethoprim 800/160. Believe it or not, this actually made my problem worse at first. I got a bad break out for the first time in months, and it almost gave me a heart attack. I called him right away and told him what happened, and he said it's a side effect of that particular medication. He said give it a week, and if it doesn't clear up, to come back. I then gave it a week, and my scalp cleared up dramatically. I literally had maybe one or two bumps. It was the best my scalp looked in a LONG time. That was last week. A week later, my scalp still looks good, but I have a few more bumps. Honestly, this is something that's hard to get rid of. I was told by BOTH dermatologists that it can come and go at anytime, and you just have to keep trying to control it. It sucks, but that's life. I was also told that more people have it then you think, only difference is that being bald it's extremely noticeable, where as people with hair it isn't since hair covers it. Any way, definitely see a dermatologists, and get him to prescribe you something. Over the counter stuff doesn't work (at least for me it didn't).