AliExpress still has some masks available for SGD$12 for a box of 40. Intermittent stock.

I have separated the HCMC Travel Guide into its own website for more clarity.

https://www.saigon.guru

If one organ or meridian is malfunctioning it will give a series of symptoms. Therefore, treatment of the one organ or meridian will affect the whole, producing inner balance and an harmonious environment.

This concept is also referred to as the Yin & Yang balancing.

www.chinesenaturecure.com