How to eliminate the green code with asterisk?

In general, the asterisk on the health code can only be removed if the risk of level modulation in the area you have been to is low. Or it is suggested to do a nucleic acid test, and the results show that it may be eliminated. Under normal circumstances, the asterisk will disappear naturally after 14 days. If you live in a medium-risk area, it will not be eliminated until your residence is reduced to a low-risk area.