...however, the bumps you describe have the exact cause as bumps elsewhere on the body where people shave: the folicles are infected with bacteria (something about the hairs growing out in a curly fashion makes them turn back towards the skin and irritate it, then...a fertile place for bacteria. It's likely to be a lifelong problem due to the genetics of your hair growth pattern.

Rather than take Antibiotics that affect the whole body in negative ways, you might find this - a topical antibacterial gel - is more effective for your problem! Or a beard would end the problem. Good luck.