Dragon Boat Festival to wear Chinese medicine scented sachets to prevent and cure diseases, in our country has a long history, exudes a faint medicinal flavor, has the aroma of obscenity, detoxification turbidity, drive away the efficacy of epidemic prevention. According to legend, the ancient famous doctor Hua Tuo, will be musk, cloves, sandalwood, etc. loaded into the flower silk made of scented pouches, hanging in the house for the treatment of consumption, vomiting and diarrhea and other diseases. According to the theory of Chinese medicine external treatment of internal diseases, the skin and hair muscle coupled with the five viscera and six viscera connected to the external use of drugs can be from the skin hair orifices sweat holes into the coupling, through the meridians directly to the viscera, play a role in adjusting the balance of yin and yang in the body, inspire the positive energy to ward off the external role of the evil spirits, and therefore particularly suitable for the weaker children to wear, help to support the body positive, enhance the body’s immune system. Do Chinese medicine scented capsule, generally choose the smell of pungent Chinese medicine, commonly used 6 grams of cloves, 6 grams of Sichuan pepper, Angelica dahurica 15 grams, 10 grams of Xinyi, 10 grams of ice chips, 6 grams of incense, 10 grams of Aiye, Pailan 10 grams, Gui Zhi 10 grams, Yi Zhi Ren 10 grams of fennel 10 grams of iris 10 grams of atractylodes macrocephala 10 grams of peppermint 10 grams of patchouli 10 grams of the above medicines (except for the ice chips), dry, crushed, sieve! Mixed, loaded into a cotton bag made of scented pouches, worn during the day in the child’s chest danzhong point, the night put in the child’s pillow, or made of larger scented pouches hanging indoors, generally a month for a change of medicine. Most of the selected herbs contain volatile oils, odor pure, long-lasting, on a variety of bacteria and viruses, molds and fungi have different degrees of inhibition or killing function. Studies have shown that the odor emitted by the bag can significantly improve the human nasal mucosa SIgA (secretory immunoglobulin A) content, as the upper respiratory tract can secrete more SIgA , which effectively improves the upper respiratory tract to resist the invasion of pathogenic microorganisms, thus achieving the purpose of preventing upper respiratory tract infections.