Two great ways to stay comfortable nursing are nipple shields and nipple creams. You can also use cabbage to help with tenderness and engorgement. Yes, you read that right. Some unknown properties in cabbages help soothe the breast. No wonder as a single cabbage leaf is practically the size and shape of a bra cup! Go figure. My favorite go-to method to help with nursing was a warm bath. If I was engorged, the breastmilk would leak out and become a great way to soften the bathwater!  Finally, try some ice packs for your breasts if the heat doesn't work. The best way to stay comfortable when nursing is to buy a comfortable nursing bra.