Currently, the new coronavirus pneumonia is fierce and the outbreak is spreading fast. If you have cold symptoms during this period, such as cough, nasal congestion, runny nose, etc., but have not lived or traveled to an area where the disease is endemic, and have not been exposed to the infection, you may first be isolated at home for 14 days on your own without going to a hospital. Those who have not developed the disease at the end of the observation period can resume normal study, work and life, but if symptoms such as fever, chills, diarrhea and breathing difficulties appear during the isolation period, they should go to the nearest designated hospital as soon as possible and wear a medical surgical mask or N95 mask throughout the journey to the hospital.