That's me, getting a nasal lavage.

And I found I could do it with a nasal inhaler.

Actually, we thought the nasal tract might be full of viruses even when you're walking around healthy.

The nasal cavity is unique, as the only place where brain cells (neurons) are directly exposed to the environment. If we model smell on local terms, we can trace how nasal neurons interact with scent particles, sending signals through a network of other neurons to the brain.

And just to give you a sense of how this works, imagine that we took a nasal swab from every single one of you.

(b) Subjective human observations could be supported by objective measurements of clear respiratory tract irritation (RTI) (eg. electrophysiological responses, biomarkers of inflammation in nasal or bronchoalveolar lavage fluids)

Aspiration means the entry of a liquid or solid chemical product into the trachea and lower respiratory system directly through the oral or nasal cavity, or indirectly from vomiting

The publicity and resulting panic surrounding the WHO s announcement of Phase 5 and 6 alerts especially in the absence (until December) of widely available vaccine also brought out fraudsters peddling all sorts of ineffective and possibly dangerous protective gear and nostrums gloves, masks, dietary supplements, shampoo, a nasal sanitizer, and a spray that supposedly coats the hands with a layer of anti microbial ionic silver.