Although this site's focus is on hyperhidrosis, ETS is also used by some surgeons to "cure" facial blushing with mixed results.
https://www.no-ets.com/facial-blushing.html
Some surgeons no longer offer ETS to cure facial blushing due to high rates of recurrence and side effects.
This portion of the forums is for people to discuss facial blushing and the nonsurgical solutions that are available to cure or improve blushing.