if these aren't normal for you, I recommend seeing your provider. It could be that you have a bacterial skin infection or something going on that needs treatment. Do not continue to pick at them either!!
grace
I've not been picking them, weird today after 4 weeks they seem to have not re-appeared, but have scarred my butt and legs, I dunno they don't like like the Herpes pics I have seen on google (and thats alot of research I have done)
Still getting pimples on my butt after 6 weeks, my pimples look nothing like the pictures on http://www.dermnet.com/thumbnailIndex.cfm?moduleID=21&moduleGroupID=614&groupIndex=0&numcols=0 any ideas please, they appear here there and everywhere one at a time no clusters/hives etc...its driving me nuts...
did you go see a doctor yet? If not that's your next step. Nothing we can possibly do to help until you've went to be seen and properly examined.
grace