摘要
慢性鼻竇炎（chronic rhinosinusitis, CRS）是一種發炎性疾病，其定義是連續3個月以上表現4種主要症狀（面部疼痛／壓力、嗅覺喪失或低下、膿鼻涕、鼻塞）中的至少兩種，並有客觀證據證明鼻竇炎的存在。客觀證據可通過前鼻鏡或內視鏡觀察鼻腔內之分泌物、或目前公認最精確的判斷工具是電腦斷層。慢性鼻竇炎治療的目的是提高粘膜纖毛清除率（mucociliary clearance）、改善鼻竇引流、根除局部感染及發炎、促進局部用藥的效率。第一線治療是以生理食鹽水沖洗鼻腔和鼻用類固醇噴劑，抗生素於急性鼻竇感染時也有一定的幫助。藥物治療無效時，須考慮功能性內視鏡鼻竇手術。
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