Hi everyone. I been getting these bleeding scalp sores for two years. They come and go and leave pink patche behind. I went to dermatologist and got scalp biopsy. They said it’s purigeo nodularis. They gave me cream and some medicine. They went away for week but after being off medicine there back. However, I am not convinced it is that. I do get dry scalp often. Right now there mostly on my left side of scalp. I can’t stop scratching them and I know I need to Stop it. Thanks for any help.