Yanshuning belongs to the category of proprietary Chinese medicines and belongs to a relatively special category of Chinese medicines. The main ingredient of Yansuning is Andrographolide, which is the extract of Andrographis paniculata, and belongs to Chinese medicine in terms of composition. Andrographolide is esterified, dehydrated and salted to make Andrographolide hemisuccinate monopotassium salt, and made into lyophilized powder, which belongs to the production process of western medicine. In vitro test, it has the effect of inactivating adenovirus, influenza virus, respiratory syncytial virus and other viruses, so clinically it has the effect of clearing heat and removing toxins, antiviral effect, and it is mainly applied to viral upper respiratory tract infections caused by the above pathogens, viral pneumonia and other diseases. Andrographolide, the main component of Yansuning, has the ability to promote the secretion of glucocorticoids from the adrenal cortex, which can reduce the inflammatory response, lower the permeability of capillaries, reduce inflammatory exudation, and reduce the edema between lung tissues, which can help to improve the body’s ability to resist infection, so Yansuning can improve the clinical symptoms of viral pneumonia, and help to reduce body temperature. When patients have symptoms of respiratory tract infections such as coughing and sputum, they should avoid unauthorized use of medication to avoid delaying their condition, but should consult a doctor in time and be actively treated after examination by the doctor. In addition, because the main ingredient of Yansunin is herbal extract, patients will have certain adverse reactions after using it, such as skin rash, itching, laryngeal edema, anaphylactic shock and other allergic reactions, and also cause nausea, vomiting and other gastrointestinal symptoms, so when using Yansunin, the caregiver should pay attention to the patient’s body changes in a timely manner, and once the discomfort occurs, the medication should be discontinued immediately in order to avoid causing serious adverse reactions. And Yansunin has reproductive toxicity, can cause miscarriage and other adverse phenomena, so pregnant women are prohibited.