1.First of all, we should clarify whether it is a cold or not, because the symptoms of chronic or allergic rhinitis attack are the same as a cold; 2.Patients with tuberculosis are prone to colds; 3.Patients with high work pressure, mental tension, working environment hot and cold, etc. are also prone to colds; 4.Low immunity. Therefore, frequent colds should first be seen for the above conditions. If the immune system is low, those who often catch a cold should strengthen their immune system. Strengthen physical exercise, keep cheerful mood, participate in some cultural and sports activities, reasonable nutrition, balanced diet, pay attention to nutrient supplementation, diet, regular life and living, sufficient sleep is important. Wash your hands and touch your face less often, stay away from the “cold”, open the windows more often and drink more water.