Hello,
Maybe the lumps that you are mentioning on the pubic part are folliculitis or cysts since it is hairy. Blocked sebaceous glands, swollen hair follicles and excessive testosterone production will cause such cysts.
The other possibilities are molluscum contagiosum(multiple, small, dome-shaped papules, often with a central depression or plug) or genital warts(caused by HPV infection but less likely in your case).
Apply warm compresses, Neosporin ointment and calamine lotion and avoid messing with it. You can take anti-inflammatory pain killers like ibuprofen or acetaminophen. If the lump persists then it will be best to get it evaluated from a dermatologist.
I hope it helps. Take care and regards.
p.s. can it also be a skin raise...