I discovered about 5 red bumps of varying sizes (between 2cm and 5mm) on my butt cheek a couple of days ago. They are numb to touch, sometimes itchy, but not painful except if I sit on them for a while, which I try to not do. So far there hasn't been any puss coming out of them, I haven't tried squeezing them, but it does feel like there is something under the skin. There are little black spots in the middle of two of the red bumps, but I didn't feel anything bite me. I am on holiday far away from any doctor, I have been applying an anti-bacterial cream after I shower since I found them. Could it perhaps be from sitting in the same position for too long? (3 hour flight + 5 hour drive) If not that, any suggestions as to what it might be and any possible temporary treatment, until I get back home. Please, any help would be appreciated.