If the slight cough after gastroscopy is due to choking caused by the stimulation of gastroscopy, usually no treatment is needed. Because in the process of gastroscopy, mainly through the gastroscope catheter into the stomach for examination, in the process of examination may be damaged in the gastric mucosa, esophageal mucosa, or stimulation to the trachea, the pharynx caused by choking cough, which makes the patient after gastroscopy symptoms have been coughing. If the cough is only mild, no special treatment is needed, and it can be recovered after resting. If after gastroscopy for a long time has been coughing, persistent unrelieved, may be due to pharyngeal irritation caused by choking, or mucosal injury caused by inflammatory changes, resulting in acute pharyngitis, bronchitis, etc., can be given to clear the throat or anti-inflammatory drugs, such as clearing the throat drops or amoxicillin, etc. treatment. If you have long-term discomfort after gastroscopy, it is recommended that you go to the hospital immediately for relevant examinations, to clarify the cause of the disease, under the guidance of the doctor for treatment, so as to avoid delaying the condition.