New coronavirus pneumonia is a self-limiting disease, there is no specific drug, mild cases can usually be self-cured in about 1~2 weeks. Currently, new coronavirus pneumonia is categorized into mild, common, severe and critical, and most of the new patients in China are mild cases. The symptoms of mild cases of novel coronavirus pneumonia are mainly mild fever, mild cough and other respiratory symptoms, and lung imaging will not suggest inflammation of the lungs. In mild cases, the body’s immune system is able to produce antibodies that allow the disease to heal slowly, usually within 1 week. If accompanied by some fatigue, chest tightness, or coughing up phlegm, the healing time may be longer, but usually not more than 2 weeks. Although patients with mild cases of new coronavirus pneumonia can recover on their own, this is not the case for everyone. After diagnosis of new coronavirus pneumonia, treatment is still needed, because only relying on the body’s immune system to eliminate the virus in the body is harmful to the body, and it may lead to the development of mild cases of new coronavirus pneumonia into severe cases, which may be life-threatening. Therefore, it is best for patients with mild cases of new coronavirus pneumonia to consult a doctor in a timely manner, under the guidance of the doctor’s treatment, and in conjunction with a healthy mindset, work and rest, as well as diet. Tips] In this article, the terms “new coronavirus pneumonia” and “new coronavirus pneumonia” have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.