Hi, External beam radiation will destroy the cancer and you ( may never ) have to worry about it again !! Always the possibility of recurrence. The hardest thing to do is drinking fluids before each treatment and holding it until you have to pee so bad ✌️ Each treatment only takes a few minutes ✌️I went 44 times but you probably wouldn’t have that many treatments. Shouldn’t interfere with your sex life unless they put you on testosterone lowering meds for awhile !!