Hello Thanks for query . You have acquired infection of the genitals due to unprotected oral sex and allergic reaction of the skin over thigh due to vaginal secretions of your female partner . You need to take broad spectrum antibiotic like Cefixime along with anti inflammatory drug like Diclofenac twice daily .along with topical antibiotic ointment like Neosporin twice daily for local application over glans penis and tip of the penis . Use steroidal cream for application over thigh .. Ensure to wash your genitals and thigh with warm water twice daily. Ensure to avoid sexual encounters till it heals up completely. Dr.Patil.