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 venom and pet dander. Allergies also can happen due to certain foods and medicines that don't cause reactions in most people.

2021年7月31日 · Burks AW, et al. Indoor allergens. In: Middleton's Allergy: Principles and Practice. 9th ed. Elsevier; 2020. https://www.clinicalkey.com. Accessed April 28, 2021. Eguiluz-Gracia I, et al. Precision medicine in house dust mite-driven allergic asthma.

2024年4月6日 · A number of outdoor allergens and irritants — ranging from pollen and mold to cold air and air pollution — can trigger asthma attacks. Find out what causes or worsens your asthma, and take steps to avoid those triggers.

If you have hay fever or allergic asthma symptoms throughout the year, take a few steps to reduce allergens in your home. Here are some room-by-room suggestions.

2021年7月31日 · Wash all sheets, blankets, pillowcases and bedcovers in hot water that is at least 130 F (54.4 C) to kill dust mites and remove allergens. If bedding can't be washed hot, put the items in the dryer for at least 15 minutes at a temperature above 130 F …

2024年8月24日 · A healthcare professional uses a tiny needle to prick or scratch your skin and expose you to small amounts of the proteins found in your potential allergens. If you're allergic, you'll likely develop a raised bump called a hive at the test area on your skin.

2023年4月6日 · Allergies, on the other hand, are not caused by a virus but rather by immune system responses triggered by exposure to allergens, such as seasonal tree or grass pollens. Sneezing and runny noses are two symptoms of allergies.

2021年8月4日 · Allergens from cats and dogs are found in skin cells the animals shed (dander), as well as in their saliva, urine and sweat and on their fur. Dander is a particular problem because it is very small and can remain airborne for long periods of time with the slightest bit of …

2023年6月20日 · Exposing kids to allergens — early and often — appears to be the best way to avoid scary food allergies in children.

2024年8月30日 · Read food labels carefully to avoid the most common sources of food allergens: milk, eggs, peanuts, tree nuts, fish, shellfish, soy and wheat. When in doubt, say no thanks. At restaurants and social gatherings, you're always taking …