Hello I appreciate your concern Looking at your description this could be a sign of underlying Infection, allergy or drying effect or contact dermatitis I would like further information to help you better like Your age and relevant medical history like diabetes or other metabolic disease Any recent exposure to unprotected sex? I would advise you to consult a VD specialist for physical check up and a battery of tests for confirmation of diagnosis You may require a course or antibiotics or antifungal drugs Meanwhile use condom during sex Maintain good hygiene Apply any moisturising or antiseptic ointment like mupirocin Hope this answers your question Beat wishes