Rumor identification: Chewing betel nut alone is not effective against novel coronavirus. Rumor analysis: 1, clinical trials have proved that betel nut extract has a certain antiviral effect, but the prescription containing betel nut is a targeted application of experts according to the two syndromes of the current new pneumonia, each prescription is a whole, does not mean that betel nut alone is effective. Betel nut chewing antiviral can not be established, there is no trial and clinical basis, medicinal betel nut and food betel nut itself is two concepts, the two can not be equivalent. The betel nut is used in the current prescription of the new crown pneumonia, mainly with the prescription of the drugs to play a role in the management of Qi and dispel dampness, in order to help clear the lung Qi. 2, betel nut is just a common food and has no therapeutic effect on new pneumonia. In addition, in the WHO list of carcinogens, betel nut is classified as a class of carcinogens, and long-term consumption of betel nut is likely to increase the risk of cancer. Special Note: Betel nut chewing does not prevent the spread of novel pneumonia, and betel nut has a lot of chemicals and preservatives added to it, and regular betel nut chewing will make your teeth darker and more yellow, which can also easily lead to oral cancer. The most effective way to curb the spread of novel pneumonia is to go out less, wear a mask when you go out, do not come into contact with outsiders, do not touch objects in public places, and do not eat wild animals.