Bruising and swelling from being hit by something is handled differently depending on the patient and should be handled as prescribed by a doctor. Bruising, also known as ecchymosis, is a symptom of flaky bleeding under the skin and is common in areas of the limb that are prone to friction, bumps and pressure. Dark purple ecchymosis occurs when the skin is impacted, and more severe impact injuries may result in hematomas and fractures. Patients who develop ecchymosis after being smashed should go to the hospital promptly to clarify whether there is a fracture, and if so, manage the fracture accordingly. Excluding fracture, internal organ injury, etc., ice can be applied to the petechiae to reduce the bruising in the operation area, and change to heat after 48 hours, which can promote the absorption of petechiae by the body. If the ecchymosis is extensive and accompanied by obvious swelling and pain, the doctor will use topical safflower oil and other drugs to promote the absorption of bruises. Patients should quit smoking and drinking to prevent damage to the capillaries under the skin and aggravate the symptoms of ecchymosis. Patients should drink sufficient amount of water, pay attention to rest, and maintain physical and mental relaxation. Regular follow-ups will help the doctor to evaluate the treatment effect and adverse reactions, and the medication program can be adjusted in time to improve the therapeutic effect.