Suggest Treatment For Swollen Foreskin After Paraphimosis

Hi there, I had surgery today for paraphimosis. The surgeon left while I was still recovering from the nitrous oxide, so I was unable to talk to her properly about what I need to do next. I would like to know if there are any dangers I should be looking out for now that I have had the operation. My foreskin is a real mess as she had to remove a section of skin to return it to its original position. I have noticed that there seems to be a lot of blood clotting right at the end of the foreskin and the foreskin still seems a little swollen. Also when I urinate, it flows out between the stitches, instead of flowing out where it normally would. I am just wondering whether these things are normal or whether I need to go back to the hospital to get them to check up on it. Also I am concerned that if I have an erection in my sleep, the paraphimosis will occur again. Is this a legitimate concern for someone who has just had this surgery?