sore/cracked nipples are very common on breastfeeding moms especially first time moms who doesn't have any clue about latching.1 oz might seems very less but it is good enough. Latching will get way better after the first 3-4 weeks and you might not need to use it afterwards. So there is no need to get a 5oz bottle. Motherlove Herbal Nipple Cream helped me a lot with soreness. Also note that this cream is better used for prevention than cure. So apply it before feeding itself. Also remember to air dry.