Nucleic acid test mainly includes nasal swab nucleic acid test and pharyngeal swab nucleic acid test, in the process of the test may appear transient symptoms of discomfort, but there is no harm to health.
Pharyngeal swab nucleic acid test requires taking samples from both sides of the back wall of the pharynx, which may irritate the pharyngeal nerves, resulting in nausea, vomiting and other symptoms, and most of the people will return to normal after completion of the operation.
Nasal swab nucleic acid test requires sampling from the mucous membrane of the nasopharynx, which may irritate the mucous membrane of the nasopharynx during the procedure, resulting in symptoms such as sneezing and a slightly runny nose. These symptoms will disappear after the procedure and have no effect on health.