刚从外地出差回来的汪先生,每天早晨起来必打上百个喷嚏,清涕随之流不止,到了中午或晚上,这种过敏性鼻炎的症状就大为好转,而此前,他的鼻子从未跟他闹过“别扭”。这些因外界某种刺激而出现打喷嚏、流眼泪、脸 Mr. Wang, who just returned from a business trip overseas, must wake up with hundreds of sneezes every morning and clear the tears. After noon or night, the symptoms of allergic rhinitis are greatly improved, and his nose never before He has been with him “alien ”. These due to some external stimuli appear sneezing, tears, face