Absolutely or estrogen quantity is relatively overmuch, cause water, natrium store stay, bring about cerebral oedema, because this uses dehydrating agent or diuretic cure migraine,be effective.

• 雌激素量绝对或相对过多，造成水、钠储留，导致脑水肿，因此用脱水剂或利尿剂治疗偏头痛是有效的。