“Are you allergic to medications?” We are often asked this question when we visit the hospital or go to the pharmacy to buy medication. If an allergic drug is taken by mistake, it will be very dangerous in case of drug allergy and the patient may die in just a few seconds or minutes. World Allergy Day is celebrated every year on July 8. When it comes to allergies, many people are no strangers. Allergies are listed by the World Health Organization as one of the top three diseases to focus on in the 21st century. According to authoritative statistics, 22% of the world’s population suffers from allergic diseases. The more developed the area, the more prone to allergies The cleaner the place, the more developed the area, the more prone to allergies. Dr. Chen Zhaoyuan, attending physician at the Department of Otolaryngology of Xiamen Hospital of Traditional Chinese Medicine, introduced that the incidence of allergic diseases is higher in developed countries and regions than in developing countries, higher in cities than in villages, and higher in polluted areas than in non-polluted areas. In developing countries, the increase in allergies is associated with urbanized lifestyles, and rural children are less likely to suffer from allergic diseases; in cities, children of well-off families are more likely to suffer from allergic diseases than children of low-wage earners. “The cleaner the environment in which children grow up, the more they lack slow contact with allergens, so their bodies are prone to allergic reactions. From this perspective, it makes sense that ‘if you don’t eat dry, you don’t get sick’.” Chen Zhaoyuan suggested that parents should encourage their children to go outdoors and be more exposed to nature, which is not only beneficial to broaden their growth space, but also to expose them to more allergens in nature, which is very beneficial to the perfection of their body’s immune system.