A client who is 4-days postpartum calls the clinic and reports to the nurse that her nipples are so sore that she does not know if she can continue to breastfeed her infant. Which instruction is best for the nurse to provide?

A. Applying hot packs before feeding may help with milk flow but will not prevent or reduce nipple soreness. B. Supplementing with formula every other feeding can decrease milk supply and interfere with breastfeeding success; it should be avoided unless medically indicated. C. Washing nipples with soap can cause dryness and further irritation, worsening soreness. D. Letting nipples air dry after each feeding helps prevent cracking and promotes healing by reducing moisture buildup that can encourage bacterial or fungal growth.