Licorice and Dried Ginger Soup is from “The Treatise on Typhoid Fever”, which is used for treating typhoid fever after misdirected sweating, with cold extremities (cold extremities, even to the elbows and above the knees), dryness in the pharynx, irritability and vomiting, and impotence of the lungs with vomiting of salivary froth without coughing, and whose people are not thirsty, with loss of urine, and urinary counting. There are no studies saying that this formula can be used to prevent new coronavirus pneumonia. Adverse effects of Licorice and Dried Ginger Soup are not clear, there are clinical indications, should be taken under the guidance of a doctor, not self-medication. To prevent new coronavirus pneumonia, one should maintain an appropriate social distance; do a good job of self-protection, wear a mask when going out; avoid going to crowded places; open the windows of the home to ventilate and keep the indoor air circulating; and actively get vaccinated against new coronavirus pneumonia.