1. The Yellow Emperor asks, "What's the ailment causing chronic headache?"
2. Qi Bo replies, "That disharmony results from the attack of strong cold pe:miaous influence which invades upward to the brain."
3. Toothache is not a serious ailment, but it is painful.
4. Therefore, symptoms such as headache and toothache result, and this dishannony is called jueni (morbid condition characterized by lingering headache).
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