Pneumothorax intubation for 18 days is still particularly gas, you can choose medication, adjust the position of the intubation, surgery and other ways to alleviate the treatment. 1. Medication: If the patient still has gas after 18 days of pneumothorax intubation, he can choose to use medication to alleviate the problem, such as injecting tetracycline, hypertonic dextrose, sterile talcum powder and other medications into the drainage tube to make the rupture healed, and to make the pleural membrane gap closed, so as to prevent air leakage. 2. Adjustment of tube position: patients with pneumothorax who have been intubated for 18 days and still have gas may be due to improper tube position or tube blockage, it is recommended to observe whether the tube position is normal or not, and if necessary, the chest closed drainage tube can be repositioned. 3. Surgery: patients with pneumothorax intubated for 18 days and still have air, after adjusting the drainage tube and other ways of treatment is not effective can be selected for surgical treatment, minimally invasive or open heart surgery, suture leakage of lung tissue or pleural fixation to achieve the goal of healing. It is recommended that patients should go to regular hospitals for appropriate treatment in order to avoid the impact on the condition.