You can eat loofah on the solstice of summer, which has the effect of clearing away heat and relieving summer heat. Ancient medical books and their compendium of materia medica all say that loofah can "clear away heat and benefit intestines". Eating loofah soup in summer can relieve the heat. When cooking soup, it should not be cooked for a long time, and it is best to keep the bright green of loofah. The skin of towel gourd and its flowers boil water together instead of tea, which also has the function of heatstroke prevention and antipyretic.