You may shower at any time after surgery. There is either waterproof glue or a waterproof bandage over your incision. Once this bandage is removed (48 hours after surgery), you can continue to shower with the steri-strips over the incision. You do not need to put a new dressing over the top.
Please avoid baths, hot tubs, pools, or soaking in water for 2 weeks after surgery, as this can increase your risk of an infection.