Do you mean the vagina or the hairy pubic region?
Do you shave? If you shave, you will irritate the pubic region. We're supposed to have this hair. It's there to protect the inner mucous region of both males and females. It provides insulation that actually helps to aerate the private area. I recommend that you don't shave the region at all. If you wish to trim the hair with scissors dedicated to this purpose, you can do that, but you would be better served to just let the hair grow and leave it alone. You do not even need to use soap in this region. In fact, you should not use soap in this region at all. It irritates the sensitive mucous region. You will get plenty clean down there simply from being in the water. In short, don't shave.
I do not shave my pubic hair but I still get the bumps. Hair follicles tend to get irritated and possibly even infected.
If you're sexually active, check the following images and compare: http://www.avert.org/std-pictures.htm
If you believe any of them resemble your "bumps," either ask your mom to make a doctor's appointment for you or take a friend and visit a Planned Parenthood.
Mostly likely your bumps are just irritated hair follicles. Try wearing only cotton briefs, don't wear tight clothing, and use a feminine wash instead of soap (Walmart sells a generic brand that is unscented - I highly recommend it.) Most importantly, don't be afraid to approach your mom or older sister about it.
All i did was soak a cloth in real hot water hold it on the bump for five minutes then squeeze it slowly and it popped just a lot of blood and a little pussbcame out