The symptoms of upper respiratory tract infection mainly manifest as fever, sore throat, cough, difficulty breathing, and sputum production. Some cases may also present with signs of hypoxia, leading to phenomena like cyanosis of the lips. Firstly, drink plenty of water and measure body temperature. If there is acute inflammation, a sensitive antibiotic must be chosen, accompanied by antipyretic analgesic drugs to relieve symptoms. Additionally, taking medication to dilute the sputum and alleviate spasms of the bronchial smooth muscles is advised for symptomatic treatment. A treatment course generally requires five to ten days and regular follow-up checks are necessary. It is important to quit smoking and drinking, and to drink plenty of water.