You have a water proof bandage on your incision. It is fine to shower any time after surgery. Two days after surgery, remove the outer dressing. It is still safe for you to get into the shower. Be careful not to scrub at the incision line; simply let the water run over the incision and gently pat the area dry.
It is fine to swim in a pool or take a bath after the steri-strips have fallen off (or 2 weeks after surgery – whichever occurs first).