Side effects of Yunnan Baiyao capsule: very few patients take the drug leads to allergic drug rash, chest tightness, panic, abdominal pain, nausea, vomiting, strange itching all over the body, hives on the trunk and limbs and other parts of the body. Yunnan Baiyao Capsules, composed of Cao Wu (made) and so on. It has the efficacy of resolving blood stasis and stopping bleeding, activating blood circulation and relieving pain (relieving pain by removing blood stasis), detoxifying and subduing swelling. Yunnan Baiyao Capsules are used for bruises, blood stasis and swelling, vomiting blood, coughing blood, blood in stool, hemorrhoidal blood, bleeding from leakage (excessive menstrual flow or dripping), surgical hemorrhage, sores, swelling and poison and soft tissue contusion, closed fracture, bronchial dilatation and coughing blood from pulmonary tuberculosis, bleeding from ulcer disease, and infectious diseases of the skin. Contraindicated in pregnant women; patients with allergies and a history of allergic reactions to the drug should be cautious. Patients who need to use this drug should be under the guidance of a doctor.