It is usually possible to get an antigen test after taking cold medicine.
Antigen detection refers to the use of the protein structure of microorganisms to bind specifically to antibodies, and the presence of antigen is detected by antibodies, thus proving the presence of that microorganism in the sample. Whereas conventional cold and flu medicines only relieve some symptoms such as fever and cough, they do not remove pathogenic microorganisms from the body. As in the case of the New Crown outbreak, antigen detection was used to prove the presence of surface proteins of the New Crown virus in the samples.
Antigen testing is easy to perform, simple and gives quick results, but is prone to missed diagnoses. Therefore, it is usually used for initial screening of samples during acute infection and is not the gold standard for infection.
Nucleic acid testing is recommended to confirm the diagnosis if you have traveled to an area of moderate to high risk, have a history of epidemics, and suspect that you are infected.