For months now I have had a problem with huge red spots on or around my chin area. They are deep under the skin, painful and take ages to develop a white head. They also leave a scar. Apart from my chin, I don't really have a problem with spots. I've tried over the counter spot solutions, Savlon and just leaving them, but they are painful as well as being unsightly. They seem to be slightly more common before my period, but can occur at any time.
What might be causing them, and how can I treat spots like this that feel like big, painful lumps under my skin? I'm thinking of going to my GP to ask for advice, but think this may be too trivial to bother them with. I'm 37, so well past the age of adolescent zits.