Radiotherapy will damage the body’s fluids, so many patients will have dry mouth, thirst not quenched by drinking water, red tongue and other clinical manifestations after radiotherapy. It is recommended that patients should not eat raw and cold food, but warm food and easily digestible food. If the damage to the spleen and stomach is serious after radiotherapy, it is recommended that patients should go to a hospital for specialist consultation and Chinese medicine treatment. It is recommended that patients should exercise appropriately, such as practicing taijiquan and baduanjin every day, and keep a happy mood and get enough sleep.