Nausea and vomiting after radiotherapy for esophageal cancer can be relieved in one to two weeks. Common ways to relieve nausea and vomiting of patients with esophageal cancer include adjusting dietary rules, avoiding stimulation, etc., and taking medicines as prescribed by doctor if necessary. 1. Adjust the dietary pattern: Adjust the original three meals a day to five or six meals a day, while ensuring nutrition, avoiding eating too much and not putting extra pressure on the stomach. You can also summarize the rules, eat at the right time, try to eat at the time when you are not easy to feel nausea and vomiting. Do not eat foods that are difficult to digest such as nuts and cakes. 2. Avoid stimulation: Stay away from foods with strong odors, such as fishy fish, seafood, onions and other foods. Avoid stuffy and closed rooms with odors that stimulate the patient and cause nausea and vomiting, and keep the air in the indoor space fresh. Besides the above relief methods, keeping a good mood also helps to improve the adverse reactions of esophageal cancer patients after radiotherapy. If it cannot be relieved by oneself, please take treatment or oral medication under doctor’s guidance to improve it, do not take medication without authorization.