If there is too much milk after childbirth and the baby is full, the excess milk will still accumulate in the breast, causing local swelling and pain. If you do not intervene, the milk may accumulate in the breast and cause local inflammation of the breast, resulting in redness, swelling, heat, pain, and even localized pus. Therefore, it is important to actively intervene and deal with this situation by applying hot compresses to the breasts and then gently massaging them. After the massage, milking should be given according to the milking technique or the excess milk should be sucked out directly with a breast pump to reduce and avoid the occurrence of mastitis.