Pressing acupoints to prevent colds: The commonly used acupoints are Hegu (alias Tiger's Mouth, located between the first and second metacarpals of the back of the hand, near the radial midpoint of the second metacarpal, and the highest point of muscle protrusion when the thumb and forefinger are together). Sun (located at the midpoint of the line between the brow tip and the outer corner of the eye), sulcus (alias, located at the nasolabial sulcus 1/3), Fengfu (located at the midline behind the nape, one inch away from the hairline), and Fengchi (located under the occipital bone behind the neck, flush with the lower edge of the mastoid process, and depressed at the lateral side of the tendon). Massage the above points twice a day, and massage each point for more than 40 times each time. For example, in the cold season, you can increase the number of massages, or massage each acupoint more than 60 times; After massaging the above acupoints, wipe your nose with your thumb for 30 times.