Network mapping Mothers who have experienced breast-feeding are absolutely impressed by the pain of breast-feeding. Physiological milk swelling is often manifested as “double breast milk is full and hard. In severe cases, the breast is swollen, even red and hard, and even painful to touch. In severe cases, there will be high fever and mastitis”. Experts pointed out that effective sucking and frequent lactation can alleviate physiological milk swelling. Physiological milk swelling is common an...