Syndrome Differentiation and Treatment
1. Wind-cold Headache
Chief Manifestations: Abrupt onset with a splitting pain radiating to the neck and the back which is aggravated by exposure to wind, aversion to wind and cold, absence of thirst, thin and white tongue coating, and superficial and tense pulse.
Therapeutic Methods: To eliminate wind and disperse cold.

2. Wind-heat Headache
Chief Manifestations: Distending pain, or even splitting pain in the head, fever or aversion to wind, thirst with a desire to drink, flushed face, red eyes, constipation, deep yellow urine, red tongue with yellow coating, and superficial and rapid pulse.
Therapeutic Methods: To eliminate wind and clear away heat.

3. Wind-dampness Headache
Chief Manifestations: Headache with a feeling that the head is tightly wrapped, heavy sensation in the limbs, feeling of oppression of the chest, loss of appetite, dysuria, loose stools, white and greasy tongue coating, and soft-superficial and smooth pulse.  
Therapeutic Methods: To expel wind and eliminate dampness.

4. Headache due to Hyperactivity of Liver Yang
Chief Manifestations: Distending pain in the head, dizziness, restlessness, irritability, hypochondriac pain, insomnia, bitter taste in the mouth, red tongue with thin and yellow coating, and deep, wiry and forceful pulse.
Therapeutic Methods: To calm the liver and suppress hyperactivity of liver yang.

5. Headache due to Kidney Deficiency
Chief Manifestations: Headache with an empty feeling, vertigo, soreness and weakness in the loins and knees, lassitude, seminal emission, leukorrhea, tinnitus, insomnia, red tongue with little coating, deep, thready and forceless pulse.
Therapeutic Methods: To replenish yin and nourish the kidney.

6. Headache due to Deficiency of Qi and Blood
Chief Manifestations: Headache, dizziness and palpitation which are aggravated by overstrain, spontaneous sweating, shortness of breath, aversion to wind, lassitude, pale complexion, pale tongue with thin and white coating, and deep, thready and weak pulse.
Therapeutic Methods: To replenish qi and nourish blood.

7. Headache due to Retention of Phlegm
Chief Manifestations: Headache, dizziness, fullness and stuffiness in the chest and epigastrium, vomiting and nausea with sputum, swollen tongue with teeth marks on the margins, white and greasy coating, deep and wiry or deep and smooth pulse.
Therapeutic Methods: To invigorate the spleen, resolve phlegm to make the adverse-rising qi descend and relieve headache.

8. Headache due to Blood Stasis
Chief Manifestations: Persistent headache with a stabbing and fixed pain, or trauma in the head, purple tongue with occasional ecchymosis and petechiae, thin and white coating, deep and thready or thready and unsmooth pulse.
Therapeutic Methods: To dredge the orifices, activate the meridians and resolve blood stasis.