To prevent colds, you can take Yupingfeng granules orally, the main ingredients are astragalus, atractylodes macrocephala, windproof, with the effect of benefiting qi, solidifying the surface and stopping sweating, and it can improve the immunity of the body. It is mainly used for those who have deficiency of the surface and are not solid, sweating and malignant wind, or those who are weak and susceptible to wind. If often cold patients can insist on massaging Yingchun acupoints every day, and with the treatment of traditional Chinese medicine soup. When the weather is cold in winter, you can use Guanzhong Tang to add and subtract; in summer, when the summer dampness is heavy, you can use Huopu Tang to add and subtract; during the flu period, you can use Guanzhong, Panlangen, and Glycyrrhiza glabra, and decoct them with water to drink instead of tea. During the flu period, you can also use vinegar to fumigate indoors, which can prevent the onset of influenza virus.