For the past few weeks, what seems to be a large rash, has been festering on my scalp. There are bumps on my scalp that are super itchy and painful. Sometimes they get very flaky almost like dandruff but then when I try to relief the pain by itching clear pus comes out. I also notists that I have three cysts on my scalp. They’re the not the type of cysts you can pop though; they are deep into the skin and you can almost move the sac if you press on the edges.