hello doctor, my Lil one is 10 days old. My breastmilk supply is good. but one of my breast nipple is little flat, due to which baby have to struggle first to make nipple and after 1-2 minute she starts to suck milk from that flat nipple side. but during that struggle baby bites on nipple that causes pain. is there any balm or ointment that can be used over the nipple area or it will heal automatically?