A mild pneumothorax is a small amount of pneumothorax in clinical practice. When a small amount of pneumothorax occurs, there is often a sudden chest pain, followed by chest tightness, dyspnea, and breathlessness. If the amount of pneumothorax is very small, apart from chest pain, coughing, chest tightness, and dyspnea often do not occur. If the symptoms of coughing occur, you usually need to give cough medicine for treatment, otherwise it may aggravate the symptoms of pneumothorax, and you can drink fenugreek syrup to stop coughing. For the symptoms of chest pain, if you cannot tolerate it, you can take non-steroidal anti-inflammatory and analgesic drugs for treatment, such as ibuprofen extended-release capsules and ibuprofen suspension. If the symptoms of chest tightness and dyspnea are more severe, chest suction and closed chest drainage are needed for treatment. In case of hemopneumothorax, timely hemostatic treatment is also required.