Earlier in my age 15 , I got some penis infection and when I consulted doctor..he told its phimosis and requires surgery.when I consulted the other doctor, he said its not required and its normal..later now I am 25 and I masturbate once in a week..recently when I did, my foreskin went back and it didn t come normal...I felt bad pain and consulted doctor immediately..he applied lox gel and then my penis came normal..he told its paraphimosis...and requires surgery..is surgery really required ..is it affect anything during my intercourse sex..please do needful