Lunar May is the spring to summer season, mosquitoes and flies breeding, plague and disease is often prevalent at this time, the people of the early summer of May upset, so in folk customs, the lunar month of May is the evil month, folk call it “poison month”. The Dragon Boat Festival in May slowly formed to “drive away evil health” as the main spirit of the festival. Custom 1: hanging mugwort mugwort has a special fragrance, is a commonly used Chinese herbal medicine. According to the ancient Chinese medical book “Fifty-two Disease Formula”, mugwort leaves are bitter and pungent, warm in nature, and belong to the liver, spleen and kidney meridian, with the function of clearing heat and detoxifying, removing dampness and relieving itching. There is a popular saying that “if you have mugwort for three years, the doctor will use it”. Artemisia contains a variety of volatile oils, with an aromatic smell, can repel insects and sterilization, on a variety of bacteria and some skin fungi have inhibitory effect, so in the Dragon Boat Festival in addition to disease to drive away the plague, Artemisia essential, is a natural health care products. Custom two: eat zongzi Every family has to eat zongzi on the Dragon Boat Festival, and the most common is to use glutinous rice and red beans together to wrap the zongzi. The red beans not only contain a variety of nutrients, and has a water and dampness, and blood drainage, swelling and detoxification, etc., is a summer clear damp heat can not be more good medicine. Custom three: eat five red in Nanjing, Dragon Boat Festival in addition to eating zongzi also eat “five red”, respectively, “roast duck, amaranth, red oil duck eggs, shrimp, Xiong Huang wine”, it is said that the Dragon Boat Festival eat the five red, the whole summer can ward off evil spirits to avoid the heat. 1, red amaranth on the table can not be missing, red amaranth is used to stir-fry with garlic, garlic is rich in allicin has a “natural antibacterial” reputation, antiseptic and detoxification is very significant; amaranth is sweet and cool, has the function of clearing heat and detoxification, dampness and dysentery. The two are fried together, complementing each other, which is a good medicine to prevent dysentery and other summer intestinal diseases. 2, red heart salted duck egg salty and slightly cold, can nourish yin, clear the lungs, can cure summer diaphragm heat, cough, sore throat, toothache, drainage and other diseases, replenish the salt lost due to sweating in summer, is a good summer food tonic and meal. 3.Xiong Huang is orange in color after making wine, it has the effect of drying dampness and dispelling phlegm, killing insects and detoxifying, but it is poisonous, so it is rarely taken internally, and now it has become a custom to write the word “Wang” on the forehead of children with Xiong Huang to borrow the tiger’s mighty wind and fetishize evil. 4, river shrimp to buy some, fried in oil, shrimp shells red red shiny oil, river shrimp taste sweet, slightly warm, tender meat and no thorns, but also to poison warm kidney yang, is a delicious summer table. 5, roast duck brownish red color, to the duck store to chop a breast or duck leg, cost little, pour on the brine, a colorful and fragrant delicacy will work. Nanjing people have always liked to eat duck, the so-called “three days do not eat duck, walking to slip”. The duck meat is slightly cold, sweet and salty, belongs to the spleen, stomach, lung and kidney meridian, can be a great tonic for deficiency, nourish the yin of the five organs, clear the heat of deficiency, nourish the stomach and produce fluid, clear heat and strengthen the spleen, can be called “tonic body without fire” of the good product. “Five red” high nutritional value, and seasonal ingredients, the price of the people, it is logical to appear in the Dragon Boat Festival table, replacing the 1930s Nanjing traditionally circulated fried five poisons (silverfish, shrimp, wild gourd, leek, dried black bean curd).