Blister on top lip

[ALotToTakeIn]

Is this normal? My DD has had one on and off since she was a week old( now 4 weeks ) it seems to grow, pop, the skin comes off and then in a day or so is back again.
I assume latch is fine as it doesn't hurt and she is gaining weight with lots of nappies etc

Yep, normal. So long as it isn't sore / infected just leave it be. Its just 'cause they suck a lot.

Thank you. That would explain it she does feed a lot

Normal, it will go in time.