Hello steve*** thanks for your question I would like to tell you that the cause of bleeding from penis may be -Injury due to teeth but its less likely -Second possible reason is spontaneous bleed due to minor tear in blood vessels, actually penis is a highly vascularized organ in erected state and valves of veins remain closed while erection, so continuous sucking led to minor tear in blood vessels and resulted in bleeding. So it will take time to heal, application of normal facial powder is not a good idea because it can increase chances of infection as well as may lead to development of granulomatous lesions at injured part. Best thing to do is clean affected part with cold clean water or saline solution, and then you can apply Betadine Ointment which is available OTC, and if not possible you can apply Savlon or Dettol solution. Don t try to check again as again as it will delay healing process. If swelling increases or pain increases then take Brufen Tablets and consult a doctor. - this possibility is infection but it doesn t manifest so early. take care of yourself and give proper rest so that healing process fastened all the best thanks kindly rate