A red, swollen and inflamed throat is commonly associated with upper respiratory tract infections, tonsillitis and pharyngitis. The pharynx connects to the esophagus and passes down to the stomach; the larynx connects to the trachea and passes down to the lungs. In Chinese medicine, if the external wind-heat evil poison burns in the lung system, or the stomach and lungs of the heat congestion, resulting in swelling and pain in the throat, belongs to the solid heat syndrome. Solid heat syndrome should be cold diet, such as watermelon. Watermelon is a cool fruit, so it can be eaten with the above symptoms. Moreover, watermelon is rich in vitamins, but it should be eaten in moderation, paying attention to the nutritional mix. Although patients with red, swollen and inflamed throats can eat watermelon, it does not have any therapeutic effect on this disease. If you want to achieve a therapeutic effect, it is recommended to carry out standardized treatment under the guidance of a doctor.