Always catching a cold indicates poor health, low immunity and symptoms of upper respiratory tract infection caused by bacterial and viral invasion. You can insist on massaging the Yingchun point and the foot three li every day, which can improve your body quality. You need to pay attention to weather changes and prevent cold and keep warm. At the same time, you need to adhere to physical exercise to improve physical fitness and enhance the immunity of the body. You can drink Yu Ping Feng granules every day, the main ingredients of which are Astragalus, Atractylodes and Fructus, which have the effect of benefiting the qi and fixing the surface to stop sweating, mainly for patients with surface deficiency, spontaneous sweating and vicious wind, and weak body susceptible to wind evil. If you often catch a cold during the flu period, you can use vinegar to fumigate the room as an air disinfectant, which can prevent and control the attack of flu virus. You can also take Oseltamivir phosphate capsules orally, 75mg each time, twice a day for 5 days as a course of treatment for adults, which can prevent and control the onset of influenza virus.