“过敏性鼻炎”最易与感冒混淆
最容易与过敏性鼻炎混淆的疾病就是感冒。很多人尤其是家长把过敏性鼻炎误认为感冒而耽误治疗。
![](https://image.healthjd.com/pop/jfs/t1/188800/38/21806/117095/623f1914E5677716c/b6ebc285c23dd2e5.jpg)
我们可以从一些症状上来区分感冒和过敏性鼻炎:
打喷嚏:感冒也会打喷嚏,但次数并不多,更不会连续打十几个甚至几十个;而过敏性鼻炎的症状之一就是连续打喷嚏。
鼻痒:感冒时鼻子最主要的症状不是痒,而是鼻塞。而过敏性鼻炎,除鼻痒外还常伴眼、耳、咽喉等部位的搔痒,忍不住要不停用手揉搓眼、鼻部和挖耳。
流清鼻涕:从感冒伴随的症状来看,流清鼻涕一般出现在感冒初期,而且量并不会很多。而过敏性鼻炎恰恰相反,伴随着打喷嚏会有大量鼻涕。
全身症状:由于感冒是由病毒或细菌导致的呼吸道感染,发病的主要原因是由于人体本身免疫力下降,因此在感冒的同时,一定还会并发一些全身症状,如全身无力、肌肉酸痛等。而过敏性鼻炎由于是鼻黏膜对某种物质产生的免疫变态反应,因此发作时通常不会出现以上全身症状。
感冒患者病程短,一般7~10天,而过敏性鼻炎病程较长,且呈季节性或常年性发作。
除了与感冒相区分之外,下列疾病也要注意辨别:
血管运动性鼻炎:它是鼻黏膜、血管、腺体的神经内分泌调节失衡而引起的一种高反应性鼻病。患者有时稍一碰触鼻子便可引起闪电式发作,发作突然,消失快。症状与过敏性鼻炎相似,但鼻内多不发痒,口服感冒药物症状即可得到缓解。如遇冷热变化、情绪激动时容易诱发症状。但该病变应原皮肤试验和血清特异性IgE检查为阴性。
嗜酸细胞增多症性鼻炎:症状与常年性过敏性鼻炎相似,患者经常出现间歇性鼻塞伴喷嚏连连,大量浆黏液性鼻涕,常有头晕耳鸣、乏力、阵发性咳嗽等全身症状。变应原皮肤试验和血清特异性IgE检查为阴性,但鼻腔分泌物涂片可见大量嗜酸细胞。
症状性鼻塞:除临床常见的感冒外较易忽视的尚有妇女经前期的鼻塞症、怀孕期的鼻塞症以及甲状腺功能低下时的鼻塞等。
药物性鼻炎:常见可以引起鼻塞和分泌物增多的药物有利福平及其多种制剂神经节阻滞药、口服避孕药等。近年来由于鼻塞时应用的缩血管剂用量太大或作用太强(例如鼻眼净)也常可因其扩血管的反跳作用而造成药物性鼻炎需仔细加以区分。
鼻中隔歪曲或鼻甲肥大:患者的鼻塞常终年存在多为单侧性无鼻痒及明显季节性发作倾向,鼻窥镜检查可以明确诊断。
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