Allergy
暂无此语言译文，显示英文原文。An allergy is a reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that…
Health topics
呼吸与过敏
Asthma, respiratory conditions and allergies.
呼吸与过敏
Asthma in Children
暂无此语言译文，显示英文原文。What is asthma? Asthma is a chronic (long-term) lung disease. It affects your airways, the tubes that carry air in and out of your lungs. When you have asthma, your airways can become i…
呼吸与过敏
Food Allergy
暂无此语言译文，显示英文原文。What is a food allergy?A food allergy is an abnormal immune system reaction to certain foods. Your immune system normally protects you from germs. But if you have a food allergy, your i…
呼吸与过敏
Latex Allergy
暂无此语言译文，显示英文原文。Latex is a milky fluid that comes from the tropical rubber tree. Hundreds of everyday products contain latex. Repeated exposure to a protein in natural latex can make you more likely to…
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