It hurts bad when T latches on and for about 20-30 seconds afterwards. Then it doesn't unless he has a crap latch or slips off, then I adjust him. I've had his latch checked numerous times, and it's fine. He's 5 weeks old

How long did this last for you? Is it just general tenderness? I'm doing vinegar rinses and applications of lotrimin just in case it's still thrush. And I'm seeing an LC tomorrow at a group, too.