At present, people are most concerned about how to do a good job in home self-healing and daily monitoring after COVID-19 infection. Previously, some experts said that after COVID-19 infection caused fever, exercise carefully to avoid inducing myocarditis. People hope to recover as before, but experts explain that after COVID-19's recovery, many people's physical condition will take a week or two to return to the previous one. It is recommended not to take strenuous exercise at the early stage of recovery. WHO has also updated the Guidance Manual for Rehabilitation of COVID-19 related Diseases. In the chapter of "Physical Activity and Exercise", specific guidance has been given to patients after infection on how to exercise. Because medicine has a certain threshold of professional knowledge, many people may have misconceptions about related diseases. With more and more people infected with COVID-19, a variety of popular science on the Internet has been widely spread. It can be seen that some popular science is valuable, which has made many people deeply realize the importance of not taking medicine indiscriminately for colds and fevers, which shows that professional and correct popular science plays an important role in helping people heal at home. More science popularization is needed. Recently, the joint prevention and control mechanism of the State Council invited relevant experts to interpret social concerns such as how to ensure the elderly and other key groups. Experts said that once the elderly have fever or are infected with COVID-19 at home, they must strengthen the monitoring of temperature, pulse, heart rate, blood pressure and blood oxygen saturation. If there is a decrease in blood oxygen saturation, dyspnea, physical activity or abnormal mental state, you should go to the hospital in time. The earlier you go to the hospital, the greater the success rate of treatment. Compared with the young group, the elderly and other key groups need to confirm their physical reactions as soon as possible after they are infected with COVID-19 and make reasonable arrangements in time. However, each person's physical characteristics and basic diseases are different, which requires authoritative professionals to give specific judgment suggestions and specific practice plans with common characteristics, so that more families can accurately confirm the infection and severity of the elderly at home, so that the elderly and other key groups can receive corresponding treatment as soon as possible. In addition, a large number of correct science popularization can also relieve the nervous reaction of young people and young adults after being infected with the virus. From the current case, few young people have pneumonia after infection, and the condition is relatively controllable. At this time, the necessary science popularization can help young people correctly assess their physical conditions, leave medical emergency resources to the more needy groups as much as possible, and help the whole society to tide over the current difficulties. The epidemic prevention and control has entered a new stage. In the future, a large number of infected people will gradually recover, and health care after "Yangkang" is also important. Therefore, we still need to help everyone with self-healing and rehabilitation health care at home through medical science popularization. At this time, it is also necessary for medical workers to popularize professional science in post illness recuperation. (Outlook New Times)