Cupping ??This Motion is used with the arms in the cupping place, when the hand is introduced down on the body it results in a vacuum, so once the hand is taken absent it sucks the blood to the pores and skin which is helpful for the pores and skin, https://maps.google.com/maps?ll=37.462602,126.676819&z=13&t=m&hl=ko&gl=KR&mapclient=embed&cid=5887664770186940949