Stopping smoking will help with wound healing after surgery. In addition we would also recommend that you stay well hydrated during your treatment and beyond.
You should be sun safe and keep covered and use sun screen. You should keep the area that has been affected by treatment out of the sun completely. Do not use sun beds as they emit UV rays that damage the skin.
For further advice about caring for your skin during cancer treatment please speak with one of the radiotherapy team, your clinical nurse specialist or doctor.