Lump in groin area

Hi. Iam 20 yrs old ..before 6months i suspect something on my penis. I went to dermatologist . He gave me antibacterial medicines. From that time i have a lump in my groin area. After that i did all std tests. I got hsv positive. But doctor didn't give me any antiviral drug because he said there are no symptoms but lump is still there. Groin area has become too hard. And i feel pain in groin area and in my left testicle. What should i do now...?