Usually can be used to remove blackheads:

Pour half a glass of water first, then add a little baking soda, soak it with gauze or towel and apply it to the blackhead (or like a mask). Rinse with clean water after 5- 10 minutes. Finally, ice it with ice cubes a few times.

Finally, mix with black mysterious quick-frozen film and massage for a few minutes to wash it off. Sticking to it for a month can not only remove blackheads but also shrink pores.

Don't squeeze blackheads, it will cause hair follicles.

Inflammation.