 [ Symptoms ] can penicillin cure a sinus infection  yesterday i was diagnosed with strep and put on penicillin however i am still struggling with congestion and a bad cough which i think may be sinus related do i need to go back to the doctor for another medication [ Disease ] only if he sat on fresh herpes in the public restroom immediately developed herpes himself in this area not possible and you kissed him highly unlikely in the exact area of infection try kissing him on the face or lips next time