If there is sputum when coughing, it is mainly considered to be caused by respiratory tract infections, such as pharyngitis, bronchitis and pneumonia caused by bacterial or viral infections, which can easily cause such symptoms. If the phlegm is thicker, stickier and more yellow, it needs to be actively treated with cough and phlegm relieving and heat removing drugs, as well as with effective antibacterial and antiviral drugs, such as Amoxicillin granules, Lung Ning granules, Orange Red Capsules, Shuang Huang Lian Oral Liquid, Snake Bile and Chuan Bei Liquid, etc. It can also be actively treated with antibacterial drugs such as Amoxicillin and Rosithromycin. In case of repeated attacks without improvement, it is also necessary to go to the hospital for appropriate examination first, and under the guidance of the doctor to develop a treatment plan and use drugs for active treatment.