Red spot on head of penis under foreskin that won't go away, following mild uncomfort when touched but no pain or itching. Anything to put on it?

Get evaluated. Skin lesions of the penis and foreskin should be evaluated to just make sure it is not an infection or cancer. A physician will perform a medical and sexual history and a physical exam, and based on its appearance and the diagnosis, prescribe a cream or ointment, or recommend a biopsy if indicated.