you might have keratosis pilaris--I have it also and sorry to say but you can't get rid of it, but you can make it less noticable. Neutrogena just came out with a lotion called "Skin Smoothing Body Lotion" which acctually says on the bottle it is for the red bumps on the back of arms and on legs. I also use dove Nutrium body wash. I do still have some spots, but I just started about a week ago with the Neutrogena lotion and it seems to be helping.
So I would suggest trying it and I hope you have good luck with it!!