Therapies are currently available for relapsing-remitting MS, secondary progressive MS and progressive relapsing MS.
目前有针对复发-缓解型，继发-进展型，与进展-复发型多发硬化症的治疗方案。
The most common type is relapsing-remitting MS, in which patients experience attacks of symptoms such as muscle weakness and spasms followed by periods of symptom-free remission.
最常见的类型是“复发-缓解型多发性硬化”，即病人在症状发作后，如肌无力和肌痉挛，有一段症状完全缓解的期间。
They can reduce the incidence of relapse or extend time between relapses in the relapsing-remitting form of MS but symptoms are not changed by the drugs.
它们能够降低医学倒退的发生率或者延缓倒退-抵消相转换的医学形式，但是，药物并不能够改变这些症候。
They can reduce the incidence of relapse or extend time between relapses in the relapsing-remitting form of MS but symptoms are not changed by the drugs.
它们能够降低医学倒退的发生率或者延缓倒退-抵消相转换的医学形式，但是，药物并不能够改变这些症候。
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