This could be mild infection post circumcision surgery before it healed fully. You haven t mentioned the days between circumcision and first sex after that. Oh! No doctor. There s simple ( may be little odd) way to get rid of mild infection. Safe, natural, easy and practically without extra cost. Wherever you are, find some kitchen. See or request for spices out there. Find turmeric powder ( yes not mixed with chilly...ah!). Take it and mix with little warm clarified butter ( not available...OK...take some edible oil). Smear your infected skin or shaft of penis. Let dry or cover with some cloth gently.. (Don t starngulate it...oooo). Repeat once or twice for few days. It s bacteriostatic, anti infective, analgesic, antiinflammatory but stains cloths. Wear accordingly. Even having sex with it is not prohibited if you bear pain. This is great Indian wisdom about day to day herbs. Hope it would help you in absence of doctor. Thank HCM platform when you enjoy.