Nucleic acid can not be self-tested, you can carry out the new coronavirus antigen self-test, antigen test is generally divided into two kinds of throat swabs and nasal swabs, stabbing the throat is also often referred to as a pharyngeal swab. After invading the human body, the new coronavirus will first multiply in the human body’s nasal cavity, throat and other parts of the human body, that is, in the human respiratory system. The process of stabbing the throat is generally to use a throat swab to contact the test subject’s bilateral tonsils and throat area to collect mucosal cell specimens, and then test the specimens to check whether they have the virus, so the antigen self-test can be stabbed in the throat. If there is a positive situation in the antigen self-test, the tester should be retested and reported to the epidemic prevention department in a timely manner, as soon as possible to carry out nucleic acid testing to clarify whether there is a new crown infection, in order to avoid delays in the disease.