Cold and runny nose is a symptom of acute rhinitis due to viral infection in patients with low resistance when the environmental temperature is low. Patients themselves have low immunity and poor resistance to disease, such as the elderly, people with chronic underlying diseases, usually inactive and malnourished. In the cold, viral infection may occur, the patient that is, cough, runny nose, sneezing, nasal congestion and other symptoms. Severe patients may have systemic symptoms such as fatigue, chills, aching limbs, headache, and loss of appetite. The disease is self-limiting, and when there is no secondary bacterial infection or other complications, the clinical symptoms may gradually resolve in about 1 week as the resistance improves. When the symptom of cold and runny nose occurs without the tendency of self-healing, it is necessary to go to the hospital in time for examination and standardized treatment under the guidance of the doctor.