Steaming cleanses and deep cleans your pores because you sweat out a lot of impurities in the process, including pimples, blackheads, etc. In addition, the steam also hydrates both the deeper and outer layers of the facial skin and helps to reduce the size of your pores. You'll want the water very hot so it can effectively steam your face, so boil some water in your tea kettle or on the stove. You can then put the water in a large bowl or in your bathroom sink. Wait a few minutes to let the water cool just slightly so you do not burn your face. If you use a bowl, make sure it can handle boiling hot liquids. Place your face over the bowl for 2-5 minutes. To trap the steam so it goes directly to your pores to open them up, place a towel over your head to create a tent. To boost up the steam, snip open a bag of green tea, and add the contents to the water. You could also a few drops of essential oils, like lavender.

TL;DR in Vietnamese:
Tìm hiểu lợi ích của việc xông da mặt. Đun nước. Xông da mặt. Bổ sung nguyên liệu.