Allergies - Symptoms and causes - Mayo Clinic
2024年8月24日 · Allergy symptoms depend on what allergen is involved. The symptoms can affect the airways, sinuses and nasal passages, skin, and digestive system. Allergic reactions can range from mild to severe. Sometimes, allergies can trigger a life-threatening reaction known as anaphylaxis. Hay fever, also called allergic rhinitis, can cause: Sneezing.
Allergies - Diagnosis and treatment - Mayo Clinic
2024年8月24日 · Diagnosis involves the steps that your healthcare professional takes to find out whether you have an allergy. Your healthcare professional will likely: Ask detailed questions about your symptoms. Do a physical exam. Have you keep a detailed diary of symptoms and possible triggers. If you have a food allergy, your healthcare professional will ...
Allergic Diseases - Overview - Mayo Clinic
2020年6月4日 · Overview. To help people with a wide range of allergic diseases, allergy specialists at Mayo Clinic locations offer comprehensive treatment for asthma, hay fever (allergic rhinitis), food allergy, medication (drug) allergy, latex allergy, primary immunodeficiency, chronic sinusitis, stinging insect allergy, eosinophil-associated diseases and ...
Food allergy - Symptoms and causes - Mayo Clinic
2024年8月30日 · In some people, a food allergy can trigger a severe allergic reaction called anaphylaxis. This can cause life-threatening symptoms, including: Constriction and tightening of the airways. A swollen throat or the sensation of a lump in your throat that makes it hard to breathe. Shock with a severe drop in blood pressure.
Anaphylaxis - Symptoms & causes - Mayo Clinic
2021年10月2日 · Anaphylaxis is a severe, life-threatening allergic reaction. It can happen seconds or minutes after you’ve been exposed to something you’re allergic to. Peanuts or bee stings are examples. In anaphylaxis, the immune system releases a flood of chemicals that can cause the body to go into shock.
Seasonal allergies: Nip them in the bud - Mayo Clinic
2024年2月28日 · By Mayo Clinic Staff. Spring means flower buds and blooming trees — and if you're one of the millions of people who have seasonal allergies, it also means sneezing, congestion, a runny nose and other bothersome symptoms. Seasonal allergies — also called hay fever and allergic rhinitis — can make you miserable.
Allergy medications: Know your options - Mayo Clinic
2024年10月19日 · Allergy medicines are available as pills, liquids, inhalers, nasal sprays, eye drops, skin creams and shots, also called injections. Many allergy medicines are available without a prescription. Here are the different types of medicine options available to treat allergies.
Contact dermatitis - Symptoms and causes - Mayo Clinic
2024年5月2日 · Contact dermatitis is caused by exposure to a substance that irritates your skin or triggers an allergic reaction. The substance could be one of thousands of known allergens and irritants. Often people have irritant and allergic reactions at the same time. Irritant contact dermatitis is the most common type. This nonallergic skin reaction ...
Hay fever - Symptoms and causes - Mayo Clinic
2024年8月13日 · Hay fever is caused by an allergic response to a harmless outdoor or indoor substance the body identifies as harmful (allergen). Common allergens that can trigger hay fever symptoms include pollen and dust mites. Tiny flecks of skin shed by cats, dogs, and other animals with fur or feathers (pet dander) also can be allergens.
Sun allergy - Symptoms and causes - Mayo Clinic
2024年7月19日 · Risk factors for having an allergic reaction to sunlight include: Contact with certain substances. Some sun allergy symptoms are triggered when your skin is exposed to a substance and then to sunlight. Common substances responsible for this type of reaction include fragrances, disinfectants and chemicals used in some sunscreens.