The additional symptoms of discomfort after anti-inflammatory injections for pleural adhesions on the left side of the lung may be due to pleural thickening and pleural effusion. 1. Pleural thickening: pleural thickening is caused by fibrin and soft tissue proliferation, and the main symptoms are dyspnea, chest pain and cough. It is usually caused by inflammation of the pleura and the repair of the pleura. The common diseases caused by pleural thickening include purulent pleuritis, tuberculous pleuritis and pneumothorax. 2. Pleural effusion: pleural effusion is a common clinical symptom characterized by the accumulation of pathological fluid in the pleural cavity, even after anti-inflammatory injections, there will be an increase in pleural effusion, affecting the expansion of the lungs, leading to chest tightness, coughing, chest pain and other symptoms. Warm reminder: the appearance of the treatment did not achieve the expected results, need to communicate with the doctor’s condition, adjust the treatment program.