There is no scientific research or clinical data to prove that lemon green tea can prevent new crowns. The popular rumor that lemon green tea can improve the body’s immunity and prevent new crown after drinking it is not scientific. Lemon green tea does contain some nutrients that the human body needs, such as a variety of vitamins and minerals, and moderate consumption of lemon green tea is beneficial to human health, but not to prevent new coronavirus infection, good personal protection and vaccination is the effective way to prevent new coronavirus. The new crown is the new coronavirus pneumonia, caused by the new coronavirus infection. Although China’s fight against the epidemic has achieved a phased victory, there are still patients with neo-coronavirus in some areas, so daily personal protection should not be neglected. Regardless of whether you are vaccinated or not, you should strictly wear a mask when you go out; minimize your access to crowded areas; reduce your personal mobility, and if you need to go to and from cities, you must cooperate with the local government’s prevention and control requirements and comply with the quarantine policy; do your daily disinfection and indoor ventilation, wash your hands and disinfect regularly; exercise reasonably and eat a balanced diet to enhance your physical fitness; do your self-testing and inform your community in a timely manner when you have symptoms such as fever and cough. The patient should cooperate with nucleic acid testing and isolation requirements. At this stage, there is no specific drug for the clinical treatment of NCC, but vaccination against NCC is recognized as an effective way to reduce the risk of NCC infection and has a good preventive effect against the mutated virus. People who have not yet received the neo-coronavirus vaccine should contact the vaccination department for vaccination to prevent neo-coronavirus infection.