Generally, lung nodules caused by colds go away, but the details vary from person to person. Colds are usually caused by pathogenic bacteria that invade the respiratory tract and may trigger inflammation in the lungs, at which point the lung nodule is an inflammatory nodule. When the symptoms and inflammation of the lung tissues are relieved by effective anti-infection treatment, the inflammatory nodule will gradually subside. In some people, however, the inflammatory nodule may not subside or may not subside completely, and it is important to monitor the nodule closely. If the nodule becomes larger or changes in shape, it may become malignant and immediate medical attention is recommended.