There are viral, bacterial, and mycoplasma infections that may cause bronchitis, which may result in coughing, coughing up phlegm, fever, chest tightness, and in severe cases, dyspnea, and may also be accompanied by generalized weakness and muscle aches. If the body temperature is not very high, it needs to be treated with drugs to clear heat and dispel fire. Generally, you can take oral medications such as Qing Kai Ling and Shuang Huang Lian Oral Liquid. However, if the body temperature exceeds 38.5℃, it needs to be treated with effective antipyretic drugs. You can use acetaminophen, ibuprofen and other drugs, and also appropriate with physical cooling methods, also need to use effective antibacterial drugs and antiviral drugs to treat. It is also necessary to drink more water and pay attention to a light diet.