TB patients should not spit anywhere, but should spit in a paper or spittoon, then burn or disinfect it and pour it away. Do not talk loudly, cough or sneeze at family members. It is best to wear a mask, which should be boiled and washed daily. It is better to have a separate bedroom with sufficient light and good energy wind, the room should be disinfected frequently , you can light the moxa or put rice vinegar on the stove to fumigate at 1-2 tablespoons per cubic meter of space, close the windows and doors for 1-2 hours and then open the windows for ventilation. The easiest way to disinfect heat-resistant objects such as utensils and appliances used by patients is to boil them, such as eating utensils, clothes, etc. The boiling time is 10-15 hours. The boiling time is 10-15 minutes. Patients’ used clothes should be washed frequently and exposed to the sun to kill Mycobacterium tuberculosis. Microwave disinfection: Microwaves can penetrate glass, plastic film, and paper. However, the disinfection of microwave ovens varies with the power of the microwave oven. Generally, the power of microwave ovens for home use is 700 watts or more, and the disinfection effect can be achieved in 4 to 7 minutes. Note: ① Microwaves do not penetrate metal, so do not put disinfection items in metal utensils. ② microwaves are most easily absorbed in the water molecules, so it is best to put a glass of water in the oven when disinfecting, so that the disinfection effect is better.