Patients with pneumonia who do not have a cough or fever and have no other clinical symptoms are considered to have a relatively mild lung infection, either due to smoking, inhalation of harmful chemical or physical irritants, or due to mild chlamydia or mycoplasma pneumonia. These patients can be treated without medication, but only advised to develop good habits, quit smoking, alcohol, stay away from exposure to harmful gases, and also do not stay up late, rest more, and try to avoid crowded places, so that the disease can also be self-healing. However, if the lung infection is still obvious from the imaging observation, you need to choose medication treatment under the advice and guidance of a specialist.