Small nodules in the lungs do not need to be overly concerned and do not require special treatment in the absence of significant clinical manifestations, as small nodules in the lungs do not cause significant clinical manifestations. They are usually associated with poor lifestyle habits, such as long-term smoking, obesity, or a history of lung disease, and should always be reviewed regularly. If the lung nodules increase in size or fuse into a mass, further treatment is needed. If you have coughing and phlegm, you need to take antibiotics and coughing and expectorant medications to treat the nodules, such as levofloxacin hydrochloride capsules or licorice tablets, or amoxicillin capsules. It is good for the lungs or lung function to develop good living habits as well as eating habits, quit smoking and drinking, maintain good mood, and exercise to reduce the occurrence of respiratory infections and diseases.