If the swelling is smashed by something, you need to go to the hospital’s surgery or emergency department first to clarify whether there is a fracture or a serious soft tissue injury. If not, a cold compress should be applied locally for more than 24 hours to reduce local tissue oozing and edema, and to relieve the patient’s pain. After 24 hours, the local compress can be changed to hot compress, which can promote the absorption of tissue edema and hematoma, and also can reduce pain. If the pain is severe, the patient can be treated with a topical spray of Yunnan Baiyao or safflower oil, and should not drink alcoholic beverages or eat spicy foods during the painful period. Fresh fruits and green vegetables and high quality protein can be consumed to promote wound healing, and rest should be increased.