C-section recovery question

Me

After my c-section the doctor told me the tape would come off in around 7days and to just not get it wet until then. It came off yesterday and now I don’t know what to do with the area. I don’t remember if they said anything else, except that the area would probably be discolored/blue (which mine is a bluish black). What do I do now? Do I keep water off of it? Do I try to wash it or leave it alone?