Watermelon is a traditional Chinese medicine since ancient times, it tastes sweet and light, cold in nature, its effect is to clear the summer heat, thirst, urination, hot summer heat is unbearable, heat is a kind of Chinese medicine caused by the evil of the six obscene evil. Summer heat injury, the crowd a lot of sweating, exhaustion and injury to yin and cause strong heat, thirst, heartburn, red face, sweating, shortness of breath, weakness, pulse flood, heavy heat and fainting, then drink a bowl of watermelon juice is refreshing, the summer heat suddenly disappear, so watermelon is a good product to relieve the summer heat. In addition, for warm diseases equivalent to modern acute infectious diseases, high fever, irritability, thirst, urine is not conducive to taking watermelon juice is also appropriate, watermelon has the title of born white tiger soup, due to the cold nature of watermelon as a seasonal fruit, for other seasons or the spleen and stomach cold should be used with caution.