To get along with family members without infecting them, then the patients themselves need to undergo active treatment to cut off the transmission pathway (e.g. patients can live in a separate room, use separate tableware and carry out sterilization, etc.), and other healthy family members need to enhance their physical fitness, immunity, and do a good job of cleaning themselves. For open TB, both parties should wear masks. In order for a person with TB not to infect all family members, it is necessary to start with the patient himself, the means of transmission, and the protection of susceptible people. In case of open TB, it is not recommended to live with family members, and both parties should wear masks if living together. 1. Patients: Clinical treatment with anti-tuberculosis drugs (e.g. isoniazid, rifampicin, etc.) is the mainstay of treatment, and sputum-positive patients will generally lose their transmissibility when they become negative. 2. Transmission pathway: the transmission pathway of tuberculosis is through respiratory droplet transmission, when the patient coughs, sneezes, laughs, there will be a micro-droplet of Mycobacterium tuberculosis spread in the air, and other people will be infected after inhalation, in order to cut off the transmission pathway, the patient can be allowed to live in a separate room, and open the window for ventilation, sterilization (such as ultraviolet light irradiation, etc.). For the patient has used the tableware to do sterilization, and in coughing, sneezing, should cover the mouth and nose or wear a mask, to prevent the spread of droplets. 3. Susceptible people: Susceptible people at home (such as children, the elderly, diabetics, etc.) should enhance their physical fitness, strengthen nutritional supplements, and pay attention to their own cleanliness and hygiene. If tuberculosis is diagnosed, early and standardized treatment is recommended to reduce the adverse effects of the disease.