When is the stabbing pain?

The 6th may be a different year, so the number of days varies ~ Sting is one of the 24 solar terms, which is called Sting every year when the sun runs to 345 degrees of the Yellow Meridian, usually from March 4th to 7th every year. At this time, the temperature rose rapidly, and the spring thunder gradually sprouted. "Sting" refers to the activity that small animals burrow into the soil for the winter and are awakened by Lei Zhen.