Hi i did review your concern Staphylococcal infection generally does not cause infertility and weak erection. It has different manifestations like furuncle, carbuncle, cellulitis, pneumonia, food poisoning and few others. The antibiotics that work for staph are cloxacillin, dicloxacillin, methicllin, vancomycin, linezolid but they need to be taken only under doctors advice. I hope this helps. Let me know if you have any more questions or concerns. wish you a very healthy life ahead.