Eating watermelon with a sore throat is clinically considered that the patient may have eaten too much watermelon at one time, because watermelon is a cold food, and if too much is eaten at one time, it may lead to a decrease in the patient’s resistance, and once it gets cold, it is easy to have a sore throat and other inflammatory manifestations. Another thing is that the sugar content of watermelon is very high, and patients may not rinse their mouths in time after eating watermelon, resulting in a particularly high sugar content in the throat of the mouth, which can easily breed bacterial infections and thus a sore throat. Generally speaking, if it is not very heavy, it is recommended that patients gargle with light salt water, maintain oral hygiene, and use laryngitis tablets to see if there is any effect. If the pain is very obvious, it is recommended that patients should go to the ENT clinic as soon as possible to check if the patient is suffering from tonsillitis, peri-tonsillar abscess or acute epiglottitis and other corresponding diseases, and then under the guidance of the doctor, carry out symptomatic treatment of drugs. The patient should then undergo symptomatic treatment with medication under the guidance of the doctor.