It recommend that you talk with your primary care doctor
or your dermatologist
about this issue. It would be good to formally diagnosis what these bumps are, since they could be one of several different conditions.
One possibility would be ingrown hairs. These commonly occur in areas of the body that are regularly shaved. Treatment can include good skin hygiene, although holding off on shaving for a while can also be important.
Another condition would be folliculitis, or infections at the base of the hair shafts. Again, mild cases of folliculitis will usually respond to good skin hygiene. However, more serious cases may require antibiotics from your doctor.
Another condition which is common is molluscum contagiosum. This is a viral infection of the skin that causes small fleshy growth. These may be confused with pimples. Sometimes, treatment by freezing or burning the growths can be helpful, although the growths often will clear up on their own. Also, shaving would be good to avoid, as this can spread the growths across the skin.
Call and make an appointment to see your doctor at your convenience. They will be able to help you figure out what to do.