The time between 1 and 5 a.m. every day in this month is good for the following exercise. Sit cross-legged on bed with clenched hands obliquely above knees. Try to push elbows backward as much as possible and thrust them 30 times. Then twist neck to the left and right and click teeth 36 times before inhaling and exhaling and swallowing saliva.

This exercise is effective for pathogens in the lower back, spine, lungs and stomach as well as the yellow discoloration of the sclera, dry mouth, edema in the face, hoarseness, blurred vision and sores.