The biggest sequela after Yang is coughing, shortness of breath, panting after a little exercise, and being out of breath, which is very uncomfortable. It seems that COVID-19 is definitely not a big cold, and its harm is far from as simple as experts say, so we need to attach great importance to prevention. If the symptoms of patients with yang are mild, they can exercise properly, which generally will not aggravate the discomfort of patients. You can use videos to do some relaxing exercises, such as Tai Chi and yoga. Pay attention to avoid strenuous exercise, so as not to increase oxygen consumption and aggravate patients' discomfort. After yang, patients should drink more water. Drinking more water at this time can promote metabolism and avoid anxiety and tension. You should not eat spicy food, but also take Lianhua Qingwen Capsule, ibuprofen, Xuanfei Baidu Granules and other drugs under the guidance of a doctor for symptomatic treatment. Although the mutated COVID-19 is not so terrible, the harm definitely exists, and there are many unknown hazards, sequelae and so on. So the most important thing is to take preventive measures and not be infected again. Personal protective measures at ordinary times can effectively prevent novel coronavirus's infection. Usually, the room should be ventilated more. Don't go to crowded places and don't go out unless necessary. When you have to go out, such as taking the elevator or taking public transportation, you must wear a mask regularly. After you come back, wash your hands repeatedly with clean water and disinfect them. Don't touch your eyes, mouth, nose and so on. Do not eat before washing your hands. It is necessary to strengthen exercise, work and rest regularly, have a good rest, improve immunity and improve their own disease resistance, so as to overcome the epidemic.