Nasal congestion, cough and phlegm may be caused by common cold or influenza with upper respiratory tract infection and bronchial inflammation, which are usually induced by weather changes, cold and physical fatigue. You can take noon tea granules, compound aminophenalkylamine capsule, with Pudilan anti-inflammatory oral liquid and cefaclor capsule for active treatment. If you have a cough with phlegm, you should drink more warm water to help dilute the phlegm, and take bromhexine combination, compound fresh bamboo liquid and coughing capsule for treatment. If nasal congestion is serious, you can apply hot towels to the root of the nose or fumigate the nasal cavity with hot water steam to temporarily relieve nasal congestion. During the period of illness, pay attention to keep the body warm, try to avoid the stimulation of cold and wind, avoid excessive temperature difference between indoor and outdoor, and do not eat spicy and stimulating food.