如果症状依然明显的话，就要采取外科手术来缓解病情了：切开一个小口并打开肘管，以便让神经获得更多的喘息空间。

If they're still symptomatic, then there is a surgical procedure to alleviate the problem: Make a slit and open the tunnel so the nerve has more breathing space.

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药管局发表声明说，慢性偏头痛患者为了缓解头痛，可以每12周由医学专业人士为其注射一次肉毒杆菌素，注射位置在颈部或头部。

The product will be injected into the individuals' neck or head every 12 weeks by a medical professional in order to eliminate future head pain.

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结论：骶管注射有利于腰椎间盘突出症患者缓解疼痛，改善症状，恢复日常生活能力。

CONCLUSION: the sacral canal injection is effective in relieving pain, improving symptom and recovering the ability of daily life in patients with LDH.

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