Sorry you are not having a great result. However, it may be a process and if you discuss it with the treating provider you may still reach your goal of no hair. Its important to establish your specific hair cycle and see if intervals between treatments were long enough and don't shave completely...
The bumps your experiencing are called milia which is a build up of dead skin and over production of keratin in a small area. An effective way to reduce milia or remove it would be to exfoliate this area. I would recommend a gentle body scrub with no fragrance. Continue use of a body scrub until...
This doesn't sound like a side affect from laser hair removal treatment, but I would be safe and go to a Dr and get it checked out and make sure something else isn't going on.