如频繁发作或时间较长，则应与医生讨论。
If they occur frequently or over a long period of time, however, discuss this with the doctor.
其毒素刺激神经，造成肌肉强直和频繁发作的痉挛。
Its toxin stimulates nerves, causing muscle rigidity with frequent spasms.
型肉毒素为头痛频繁发作患者提供一种局部治疗手段希望。
Botulinum toxin a offers some hope as a local treatment for patients with frequent headaches.
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