There will be a surgical dressing covering the penis. This can usually be removed after about 24 hours. Stitches (sutures) will be dissolvable but can take up to 2 weeks or more to fully dissolve.
You can wear soft underwear with a loose wound pad over the wound for protection.
You can shower normally after 24 hours, but it is important not to rub soap on the penis. It should be dried by gently patting the area with a clean towel or gauze pad. You can have a bath after one week providing the area is healing but should avoid perfumed wash products until the area has fully healed. Moisturising skin care wash (emollient) which does not contain chemicals that may irritate the skin, can often help protect the area.
The penis will be bruised and swollen after surgery. Painkillers should be taken as prescribed on a regular basis until the wound feels comfortable.
Although these are minor procedures, you should try and reduce your activity for a few days. You should be able to return to work within a week.
You can resume sexual activity again after four weeks if it feels comfortable to do so.

Related topics for further reading