Griever is right, get it checked.
1. What should you do?
Don't panic and freak out. Stay calm and be at ease. Don't worry too much. It might just be a pimple or something silly.
2. Can you take care of the bumps at home?
It is best not to.
3. Should you go to the doctor?
Definitely!
4. What kind of doctor?
STD Clinic if you have one. If not, go to a dermatologist (skin doctor). As Genital Warts are classified as a skin disease than a STD (some would disagree but hey, whatever fits your shoes, pal).
Theres two different types of HPV, one that causes genital warts (low risk) and one that doesn't cause genital warts but it is considered high risk because it may lead to cancer. Have your paps been coming back normal?
If i were you, i would get a comprehensive std test. It is possible to get infected with more than one strain of hpv. If these bumps are hurting, and you are having a fever it seems like herpes to me. I don't want to sound like a bearer of bad news but you should get checked asap.