Nucleic acid testing can be done after drinking. Nucleic acid testing mainly collects secretions from the throat, whereas after drinking alcohol mainly enters the digestive tract, so it does not affect the secretions from the throat. Nucleic acid test is affected by sampling and quality control of the test, theoretically, drinking alcohol before nucleic acid test does not affect the results. However, after drinking alcohol, it is easy to be agitated and unable to cooperate with the test, and may not cooperate well with the sampling staff, and the action is not in place enough to affect the extraction of nucleic acids. In addition, sometimes drinking alcohol may cause diarrhea or vomiting, which may affect the process of nucleic acid testing. It is recommended not to drink alcohol when conducting nucleic acid testing. To summarize, try not to drink alcohol when performing nucleic acid testing. If you have already consumed alcohol but need to perform a nucleic acid test urgently, you can also do so.