Boil and itching near genital area. Do.

Hi, i am facing severe itching and boil problem in both the side of penis or genital area or in "V" area. It started with itching problem ...but Last month 1 big boil appear in one side. When it burst and healed then 1 another boil appear on other side. I took simboitik antibiotic suggested by doc. Simultaneously small small acne was appearing in that area and within 1-2 days they healed and settled. The itching problem was sustained during this time and due to itching skin also get white and sometimes due to itching skin also get deep rashes.now again i am feeling some skin is also getting hard and taking shape of big boil on the same side...i met doc he took two test one is urine...tht showed strile and sugar test which was also fine. He suggested atiboitic. Which i took 1 week but i didnot get results...now please suggest wat should i do.