My incision looks red is this normal 3 weeks out
Do you mean that it's simply *still* red, and you think it should have healed more by now, or do you mean that it's red now when it wasn't before? If it's a change, then it's something to talk to your surgeon abouit. If it's just that you were expecting it to heal faster, it's normal.
Mine has been itching for about two weeks, but this last week it made HUGE progress in healing. (note - I'm about a week ahead of you).
--BT