这种毒素阻止大脑释放一种化学信号，从而抑制肌肉收缩。
By blocking the release of a chemical messenger in the brain, the toxin stops muscles from contracting.
哥德比说，普遍的意见是抑制肌肉收缩与减缓头痛毫无关联。
The general consensus is that the blocking of muscle contraction isn't involved in headache relief, says Goadsby.
一般都使用名为“收敛剂”的化妆水使皮肤收缩，以便抑制皮脂的分泌而减少刺激。
General use called "astringent" make-up water to the skin shrink to inhibit the secretion of sebum and reduce irritation.
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