Cold and rhinitis will not affect the new crown antigen test, but be aware that there may be other factors affecting the results of the presence of abnormalities can be carried out nucleic acid test. The new crown antigen test utilizes the principle of antigen-antibody reaction to detect whether the human body carries the new crown pneumonia virus. If the body carries the virus and the load is higher than the detection value, the nucleocapsid proteins on the surface of the new crown virus can react with the antibodies in the antigen test card, thus showing two bars. However, colds and rhinitis do not cause the presence of the New Crown Pneumonia Virus in the body, so there will be no reaction during the test. However, it is important to note that the low sensitivity of the neocollagen antigen test makes it possible for a positive result to be missed, resulting in a false-negative, so it is important to re-check the nucleic acids if you have symptoms of discomfort. It is recommended to pay attention to do a good job of protection, in and out of public places to wear a mask in a timely manner, any discomfort should be timely medical care. [Tip] In this article, “new coronavirus pneumonia, new coronavirus pneumonia” has been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.