When providing self-care instructions to a postpartum client with mastitis, which instruction is crucial?

The most crucial instruction for a postpartum client with mastitis is to encourage breastfeeding. Maintaining breastfeeding is vital because it helps to clear the milk ducts, which can alleviate the blockage that causes mastitis. Frequent nursing can help to reduce inflammation and promote healing. Breastfeeding also facilitates the removal of bacteria from the breast tissue, which is particularly important in managing this infection. Proper drainage of the breast by allowing the baby to nurse effectively not only aids in recovery but also provides the infant with nourishment and supports the mother's milk supply.

While wearing a supportive bra, resting, and maintaining adequate fluid intake are certainly important aspects of self-care and recovery, they do not directly address the underlying issue associated with mastitis. Those measures contribute to the overall comfort and well-being of the mother but do not have the same immediate impact on resolving the infection as encouraging breastfeeding does.