Weaning is something that every mother needs to go through, and the pain lasts for about a week. Breast swelling and pain with hard lumps is caused by the accumulation of milk, and the treatment is relatively simple. After you stop breastfeeding your baby, milk continues to be secreted. At this time, more and more milk accumulates in your breasts, which will cause swelling and pain. Some mothers will have a fever, which usually does not exceed 38.5 degrees and does not require fever-reducing medication, so be careful not to rush to express the milk, which will stimulate milk secretion again. In the meantime drink more malt water or take vitamin B6 orally to play a role in returning milk. Be sure to eat a light diet, reduce the intake of soup and do not eat too greasy food to avoid stimulating milk secretion. Most of the breast milk is better to experience several days of chest pains. It is better to rest at home, do not go to work, and temporarily separate from the child for a few days, not only for the child to see the mother will cry, but mainly because the baby’s crying will stimulate the milk secretion to accelerate. After one month of weaning, there are still hard knots that can be gently massaged and squeezed the nipple to see if residual milk can be excluded. If your breasts are still swollen and painful with hard lumps after six months, you need to apply hot compresses frequently to promote the absorption of the hard lumps, and if necessary, go to the hospital for an ultrasound examination to determine if you have breast enlargement or nodules.