Between the 7th cervical vertebra and the spinous process of the Ist thoracic vertebra.
Fever, heat stroke,malaria, schizophrenia, epilepsy, asthma, eczema. Neck pain and rigidity, malaria, febrile diseases, epilepsy, afternoon fever, cough, asthma, common cold, back stiffness.
Clears heat, releases the exterier, expels wind, regulates Nutritive and Defensive Qi, clears the mind, tonifies the yang.
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Perpendicularly 0.5-1.5 inches, or tilting upward at a slight slant. Deeper puncture is not advisable.