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使用我们的症状的测试看看你是否有过敏症或者Asthma is a chronic, inflammatory lung disease characterized by recurrent breathing problems. People with asthma have acute episodes where the air passages in their lungs get narrower, and breathing becomes more difficult. Sometimes episodes of asthma are triggered by allergens, although infection, exercise, cold air and other factors are also important triggers." rel="tooltip">哮喘.如果你患有过敏症,我们共享的决策工具将引导你与你的过敏症专科医生讨论各种选择,An inflammation of the skin, usually causing itching and sometimes accompanied by crusting, scaling or blisters. A type of eczema often made worse by allergen exposure is termed "atopic dermatitis."" rel="tooltip">湿疹或严重哮喘。