In clinical practice, there are cases of colds classified as "hot" or "cold" types. Even patients suffering from a "hot" type cold can experience nasal congestion, runny nose, sneezing, sore throat, and fever when they catch a chill.

For some patients who catch a cold in summer due to being chilled, it is appropriate to eat some watermelon, as watermelon is a cooling fruit. It can somewhat relieve the heat for patients suffering from a "hot" type cold. Therefore, for patients experiencing nasal congestion, sore throat, or even coughing due to a "hot" type cold, eating watermelon can help adjust and soothe, although it is not recommended to eat frozen watermelon.