At present, the epidemic situation in the factory has been opened in an orderly manner. According to the "Guidelines for Family Treatment of COVID-19 Infected Persons" published by the Comprehensive Group of the State Council Joint Prevention and Control Mechanism, asymptomatic or mild infected persons without serious basic diseases are in a stable period, and there are no infected persons who need hospitalization due to serious organ dysfunction such as heart, liver, lung, kidney and brain. If conditions permit, the family therapist needs to live in a relatively independent room in the family and use a separate bathroom. Asymptomatic people don't need medication.