I have an opened blister on my nipple it's sooo painful what to do

A. for sore nipple as well as painful nipple you will have to give rest to that breast and nipple for few days and do not give breastfeeding from that side. nipple creams are available fofr healing. you can also apply your own breast milk to decrease the soreness. if the pain is severe you can take paracetamol also if there is rashf as well as cut on the nipple you can apply nipcare or t bact cream for healing. if there is no improvement then kindly meet your doctor