It is not recommended to eat ice cream when you have a sore throat because ice cream is high in sugar, which may lead to increased phlegm secretion and worsening of cold symptoms. 1. Increased phlegm secretion: Because most ice creams are high in sugar, coupled with a sore throat, it may cause an increase in phlegm secretion, which is not conducive to the recovery of the condition. 2. Worsening of cold symptoms: If you have a sore throat due to a cold, you can’t eat ice cream. Because eating ice cream when you have a cold is likely to induce the aggravation of cold symptoms, such as chills, fever, cough, etc., may also cause tonsillitis. Therefore, it is not recommended to eat ice cream when you have a sore throat, you should drink more warm water, and also avoid eating spicy, stimulating, cold and other foods.