It is recommended to stop smoking e-cigarettes and seek medical attention if you experience lung pain from smoking e-cigarettes. Although e-cigarettes do not contain tar, they still contain nicotine and other harmful substances. Long-term smoking of e-cigarettes will irritate the respiratory tract and easily cause inflammation of the respiratory tract and even tumors. When lung pain occurs, firstly, you should quit smoking to stop the stimulation of the respiratory tract by smoke. Secondly, you should go to the hospital for further examination of chest CT, lung function, etc., to clarify whether there are infections, occupying lesions, intercostal neuritis, etc., and for the cause of the disease to give antibiotics to fight infections, to clarify the nature of the occupying surgical resection or pain relief, nutrient nerve and other treatments. Regardless of whether the lung pain is directly related to e-cigarettes or not, it is recommended to quit smoking, eat a light diet, get plenty of rest, and follow up with the doctor if you are not feeling well.