What are the dangers of the new coronavirus nucleic acid test?

Neocoronavirus Nucleic Acid Test is not harmful to the human body. It may cause temporary discomfort during the test, but it can be restored to normal after resting.
NCT is a test that uses a swab to collect secretions from the human respiratory tract and detects the presence of NCT in the secretions to determine if the person being tested is infected with NCT.
Neocoronavirus nucleic acid test is categorized into nasal swab and pharyngeal swab. Nasal swab is to insert the swab into the nasal cavity to collect secretion in the mucous membrane of the nasal cavity; pharyngeal swab is to insert the swab into the throat to collect secretion in the wall of the throat.
Both nasal and pharyngeal swabs will irritate the body during the testing process, resulting in physical discomfort such as sneezing, tearing, nausea and coughing. However, these discomforts are short-lived and can be relieved on their own after rest, and do not cause harm to the human body.