2021年12月23日 · Are you sneezing or coughing? Have a runny nose or watery eyes? You may have an allergy or a cold. Here, we give you some tips on how to tell them apart.

2023年11月20日 · Allergies are when your immune system overreacts to something called an allergen. An allergen is a foreign substance that's not harmful to most people, such as pollen …

2022年12月21日 · Allergies occur when your immune system mistakenly triggers an allergic reaction to an allergen. Allergic reaction symptoms include congestion, watery eyes, a runny …

More Americans than ever before are experiencing allergies. Learn about the increase in allergies in the US and the possible reasons behind it.

Learn about what causes sudden adult-onset allergies and how you can recognize the symptoms. Although we often think of allergies as starting in childhood, the reality is that many adults find …

2024年8月24日 · Allergies happen when the immune system reacts to a foreign substance that gets inside the body. These substances are known as allergens. They include pollen, bee …

2025年1月26日 · Allergies are caused by an overreaction of your immune system to allergens. Common allergens include food, grass and tree pollen, dust mites, mold, medications, and …

2023年9月22日 · Got allergies? Then you probably have questions. Here are answers to some of the most popular. Can Allergies Be Cured? You can’t cure allergies, but you can treat and …

2023年11月27日 · Allergic reactions happen when you come into contact with an allergen. Your immune system reacts by releasing histamines and other chemicals into your blood, causing …

2024年10月3日 · Allergies occur when someone’s immune system overreacts to a substance that would otherwise be harmless. A substance that triggers this reaction is called an allergen. …