Yes I had before. I mixed feed. I had to stop a few days to let it recover (it bleeds a little) on either one my breasts. So I have to latch one side. Apply breast milk / nipple cream on your nipple area. Keep on applying. & Let it rest awhile. You can try pumping at min level. Or you can top up fm. Also do check , is your latching on the right position/angle ? After few months, no more blisters, your breast will become a steel. lol. Till your lo has teeth . Then will start to bite 😰😭
I did and currently experience it right now
Lidya