I have seen similar versions of this problem all over the web, but no answers that match my problem.��From last 3 months, I've been getting tiny (zit-sized or smaller) slightly raised bumps on my left thumb in the center.��The do not hurt if left alone, but are painful if pressed or touched at all.��They do not itch at all.��I have tried to pick them out, thinking it was some sort of splinter, but I never find anything (no liquid/pus at all, and no object or thicker mass).��Even when I have dug deep down and assumed I must have fixed it, it came back in the same spot a few days later.��These spots last anywhere from a couple of weeks to months.��When they go, there is no scabbing or peeling or anything like that - they just disappear.��They don't tend to cluster.��The spot itself if slightly red, but it starts out skin colored and only gets red when irritated.� These things are not a major problem, but because they hurt they make writing, cooking, etc. Quite literally a pain.��Any advice would be appreciated.