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咳到懷疑人生!感冒後還爆咳「恐罹這病」 胸腔醫:拖3週速就醫

ETtoday
2026/04/02 | 3分鐘閱讀

記者許宥孺/高雄報導

每當季節交替之際,常有流感、感冒患者症狀恢復後,仍持續3週乾咳。胸腔內科醫師表示,這極可能是「感染後咳嗽」,雖然病毒已清除,但氣管黏膜仍處於修復階段,吹冷風、接觸到敏感異味,都可能引起爆咳,倘若咳嗽拖超過3週,務必要到院檢查以排除肺炎或癌症等疾病。

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領班乾咳遭勒令就醫 婦人旅日回台咳到懷疑人生

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近期診間出現多起相關案例。一名33歲的 KTV 領班,在農曆新年感冒痊癒後,卻持續乾咳近半個月,由於咳嗽聲不僅影響工作,主管更認為這會破壞客人「嗨歌」的氣氛,要求他即刻就醫。

另一名61歲的家庭主婦,春節期間赴日旅遊回台後感冒,雖然服藥後發燒、喉嚨痛等症狀改善,卻斷斷續續乾咳了將近一個月。儘管胸腔X光片顯示並無明顯浸潤或肺炎陰影,但持續性的咳嗽讓她苦不堪言。

氣管黏膜修復中 氣溫、二手菸皆是地雷

收致病例的阮綜合醫院胸腔內科主任蕭惠元指出,季節交替、日夜溫差大的時期,流感或風寒感冒的患者在康復後,常會伴隨一段時間的乾咳,甚至超過3週咳嗽難斷根。患者經過X光、肺活量檢查排除重大疾病後,均確診為「感染後咳嗽」,經過止咳藥物治療1週左右可痊癒。

蕭惠元解釋,這類患者在感冒過後,雖然體內病毒已經清除,但因感染受損的氣管黏膜,在發炎後的修復過程中,對氣溫及環境極為敏感。不管是喝冷飲、講話太久、吹到冷風、接觸油煙、二手菸或空污、塵螨等都可能引起喉嚨乾癢乾咳,或陣發性的爆咳、狂咳,有的患者甚至咳到漏尿或胸壁疼痛。

咳嗽別拖過3週 爆咳轉濃痰速就醫

蕭惠元表示,「感染後咳嗽」的喉嚨乾癢、乾咳會伴隨白痰或清痰。通常在2到4週內會逐漸好轉,但患有氣喘、肺阻塞或慢性支氣管炎、氣管敏感等本身氣管不佳者,恢復期可能長達2個月,長期咳嗽則會導致咳痰、喘鳴或胸悶。

蕭惠元強調,雖然「感染後咳嗽」多能自行痊癒,但仍要留意當原本的清痰轉變為黃色、綠色,變得濃稠、量多,甚至出現咳血、再度發燒等危險徵兆就應盡快檢查治療。若感到呼吸困難、胸悶胸痛或有氣喘般的「咻咻」聲,顯示氣管發炎變嚴重,若未及時治療將導致缺氧、呼吸衰竭。最重要的是,咳嗽別拖過3週,此時務必到院檢查,以排除肺炎或癌症等嚴重疾病。

對於「感染後咳嗽」的調養,蕭惠元醫師也給予調養建議:

1.外出配戴口罩隔絕冷空氣、保護氣管。

2.多喝溫開水,以溫鹽水漱口殺菌。少吃容易生痰的甜食及冷飲,暫時不吃油炸辛辣酸等刺激食物。

3.戴圍巾保護氣管,睡覺時頭部墊高以避免喉頭有分泌物或異物感。

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本文轉載自ETtoday,原文標題:咳到懷疑人生!感冒後還爆咳「恐罹這病」 胸腔醫:拖3週速就醫

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