for about 4 months ive had clusters of small white bumps(ranging from 1/2mm-1 1/2mm) on the inside of both sides. they dont hurt or itch. they look like goosebumps. every now and then one or more of the bumps will become red and larger and turn into a pimple like growth with some puss that comes out. when the bumps are white nothing comes out of them. i had an std/sti check done and it came up clear. the bumps werent a problem at the time of my visit, but i havent had any sexual contact since then. its not from shaving.