The basic formula：herba agastachis seu pogostemi, herba eupatorii fortunei, borneolum,radix angelicae dahuricae. This formula is from Prevention and Treatment with Traditional Chinese Medicine scheme of the Pneumonia Caused by the Novel Coronavirus (2019-nCoV） in Gansu Province (Trial).

Function principle: prevent pestilence, aromatize turbid, clear dampness and remove evil spirits, refresh mind, resist bacteria and inflammation, and get rid of mosquito bite. Through the action of aromatics, the barrier of respiratory mucosa is always in a state of war, and the ability of anti-toxin, anti-bacterium, detoxification and bacteria-discharging is enhanced.