Final answer:
The client likely has mastitis and should continue to breastfeed or pump, apply warm compresses, clear the nipple before feeding, and may require antibiotics.
Step-by-step explanation:
The symptoms described by the postpartum client suggest that she may be experiencing mastitis, which is an inflammation of the breast tissue that can result in infection. The nurse should advise the client to continue breastfeeding or pumping to keep the milk flowing, apply warm compresses to the affected area, and ensure the nipple is cleared before feeding. It may also be necessary to prescribe antibiotics to treat any potential infection. Furthermore, advising the client to rest and increase fluid intake can also be beneficial.
The localized hard mass, along with pain, tenderness, redness, and swelling, are indicative signs of mastitis. It is crucial to manage these symptoms promptly to prevent the development of an abscess and ensure the comfort and health of the mother, which in turn supports continued breastfeeding, if that is her choice.