1, prevent the invasion of disease and evil.
Avoiding its pathogenic factors is an important condition leading to the occurrence of diseases. Therefore, in addition to health preservation to enhance healthy qi and improve disease resistance, attention should also be paid to avoiding the invasion of pathogenic factors before illness. Su Wen on Ancient Naivety said: "Fake evil steals wind, so sometimes it is avoided." In other words, we should be careful to avoid the invasion of foreign evils. These include adapting to the four seasons and preventing six evils, such as heatstroke prevention in summer, dryness prevention in autumn and cold prevention in winter; Avoid epidemic viruses and prevent furuncle infection; Pay attention to the environment to prevent trauma and insect and animal injuries; Pay attention to hygiene to prevent environmental, water and food pollution.
2. Drug prevention
Taking some drugs in advance can improve the immune function of the body and effectively prevent the invasion of pathogenic factors, thus playing a role in preventing diseases. This is especially important for preventing the spread of boils. In this regard, ancient physicians have accumulated many successful experiences. There is a record in Su Wen's Acupuncture Theory (Heritage) that "Jin Xiaodan ... took ten pills, and there was no epidemic dryness". /kloc-in the 6th century, the human pox vaccine was invented to prevent smallpox, which pioneered artificial immunity and made great contributions to the development of vaccine immunology in later generations. In recent years, under the guidance of the prevention theory of traditional Chinese medicine, Chinese herbal medicine has also achieved good results in preventing diseases. For example, Radix Isatidis and Folium Isatidis are used to prevent influenza, avian influenza, infectious atypical pneumonia and mumps, while Herba Artemisiae Scopariae and Rhizoma Osmundae are used to prevent hepatitis, which is simple, practical and effective.