People in my county have given up with masks. We are maybe 60% vaccinated but I feel there is a false sense of security because of the low population density. It’s so easy to wear a mask and give yourself protection, but you also have the added problem that people don’t seem to understand how to fit a mask properly either.

It’s not recommended in US but apparently it’s big in Thailand, some 80% of the population making use of it as a part of traditional medicine (Hatha Yoga) - Thailand was famously doing very well for the first year (low case rates), but apparently they have since caught up.

One article with lots of interesting stats (get your Adblock ready): https://www.indiatoday.in/news-analysis/story/did-nasal-rins...

General details on the practice: https://en.m.wikipedia.org/wiki/Neti_(Hatha_Yoga)