A little pain in the right chest after eating and swallowing may be caused by reflux esophagitis, esophageal cancer and other diseases, which need to be treated under the guidance of doctors, such as medication, surgery and so on. 1. Reflux esophagitis: there may be heartburn and reflux symptoms, which may appear after eating; patients with reflux esophagitis should keep their body weight in a reasonable range, raise the head of the bed appropriately when they sleep, avoid eating chocolate, strong tea, etc., and avoid lying down immediately after eating; they may also use acid-suppressing drugs such as omeprazole, lansoprazole or gastric stimulants such as mosapride to treat the condition as prescribed by doctors. 2. Esophageal cancer: Surgery can be performed by thoracolaparoscopic minimally invasive resection of esophageal cancer plus lymph node dissection, etc., which can be combined with chemotherapy and radiotherapy if necessary. If there is a symptom of right chest pain after swallowing something, it is recommended to go to the hospital and ask the doctor to make a judgment and give a treatment plan.