Hello , I understand your concern. I am Dr. Arun Tank, infectious disease specialist, answering your concern. Staphylococcus (SA) never causes erection problem it is your false belief. But if you feel in that direction than erection problem can occur, but it has psychological origin than. I advice you not to think that SA can cause erection problem. Good psychological counselling can treat your current problem. You can also visit to the near by psychiatrist for the counselling. You can also choose the option sildenafil citrate for the erection. It will give you good and sustained erection. Please do not take overdose if the single dose is not effective. Please take the drug under your doctors guidance. I will be happy to answer your further concern you can contact me here or you can contact me on bit.ly/DrArun We wish you a best health at healthcare magic. You can hit thank you button if you are helped. Thank you, Dr. Arun Tank If you are satisfied with my answer rate me as five star and close the answer.