Why Are Nasal Swabs Used in Some Places Instead of Oral Swabs?

In actual anti-epidemic and anti-epidemic work scenarios, medical staff actually have a scientific basis for judging whether to collect oral swabs or nasal swabs. Since the nasal swab is in the sampling process, the sampled person only needs to expose his nose, and the probability of the sampler being exposed to the virus environment is low. For high-risk populations, such as asymptomatic infections, entry personnel, or suspected populations in isolation, the use of nasal swabs for nucleic acid testing can reduce the risk of infection of the collectors, and the psychological acceptance of the samplers, that is, the medical staff, is also higher.  As for the nucleic acid testing and screening carried out in the community, due to more emphasis on rapid screening, the use of oropharyngeal swabs is more convenient and faster.

If discomfort or slight bleeding occurs during the collection of the nasal swab, it is generally not treated. The discomfort will disappear automatically after a period of time. If you encounter real uncomfortable conditions, you can wash it with normal saline. But do not wash too much, too much washing may bring more discomfort.