Vaginal pus bumps/acne/ lumps/ Infection

In March, I got a very hard bump/lump/acne/boil around my vaginal area. I immediately rushed to gynecologist nearby & was prescribed Augmentin 650gm tablet twice a day for 7 days. In next few days my bump was turning into pus & finally drained out one day.But after few days I notice 2 new hard bumps. In a week it drained out the pus again. A week passed, I got 5 new bumps. 2 of them are already ripe filled with pus now ready to explode & other 3 are still budding. They occur on the inner edge of the pubic area (not on labia or vagina opening) and are very uncomfortable & slightly painful. I take good care of my vaginal hygiene regularly with intimate wash & warm sitz bath, yet such bumps occur again & again. Kindly let me know what is this infection called and what medication is to be taken to stop it from coming back.