There is no clear rule on how late the third booster shot of the new crown should be delayed, but the booster shot is to be given after the full vaccination program has been completed for 6 months. For those who have not completed the vaccination according to the program, it is recommended to catch up the vaccination as early as possible. The New Crown Third Booster is usually an additional vaccine given after the normal vaccination to strengthen the body’s ability to fight infection. The New Crown Third Booster Shot is usually given after the first and second vaccinations, and the patient will produce a certain amount of antibodies in the body. With the passage of time, the antibodies in the body will decline in about six months and cannot achieve the effect of preventing viral infection. Therefore, patients should receive the third vaccination about six months after the completion of vaccination. It is recommended that people who have received the third booster shot of Xinguan should pay attention to rest, avoid overwork, try not to eat spicy and irritating food, and avoid premature contact with water at the vaccination site.