If the respiratory tract is infected by bacteria or viruses, the corresponding reaction of the airway fever, cough, sputum, and even wheezing state, the most common cough and sputum, in fact, is the airway invasion of bacteria, viruses, microorganisms of the battle and fight. In the course of treatment: 1. sensitive and effective anti-viral or anti-bacterial drugs should be actively given; 2. drugs that can resolve phlegm and promote phlegm expulsion can be given, such as the commonly used Chuanbei Loquat Cream, and rock sugar pear water, which are effective in resolving phlegm and expelling phlegm, and western medicines such as carboxymetholastan can also be given to promote the expulsion of phlegm and dilution, which can all be relieved. In this state, you should rest actively, drink more water, and improve the whole body condition and body function in order to get well soon.