My hometown in Shanxi China had this practice as well. It's often to see children with star shaped red mark on their forehead, hands; when they experienced mild

My hometown in Shanxi China had this practice as well. It's often to see children with star shaped red mark on their forehead, hands; when they experienced mild fever or headache. It's quite painful when pinched at the beginning. I am not sure if they are actually helpful to relieve the symptoms.