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Sometimes, allergies can trigger a life-threatening reaction known as anaphylaxis. Hay fever, also called allergic rhinitis, can cause: Sneezing. Itching of the skin, nose, eyes or roof of the mouth. Runny, stuffy nose. Tiredness, also called fatigue. Watery, red or swollen eyes, also called allergic conjunctivitis.
Diagnosis. 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 ...
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.
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 ...
Both COVID-19 and the common cold are caused by viruses. COVID-19 is caused by SARS-CoV-2, while the common cold is most often caused by rhinoviruses. All of these viruses spread in similar ways and cause many of the same symptoms. However, there are a few differences.
Anaphylaxis is a rare, life-threatening reaction to a drug allergy that causes the widespread dysfunction of body systems. Symptoms of anaphylaxis include: Tightening of the airways and throat, causing trouble breathing. Nausea or abdominal cramps. Vomiting or diarrhea. Dizziness or lightheadedness.
Anaphylaxis causes the immune system to release a flood of chemicals that can cause you to go into shock — blood pressure drops suddenly and the airways narrow, blocking breathing. Signs and symptoms include a rapid, weak pulse; a skin rash; and nausea and vomiting.
Most often, pet allergy is triggered by exposure to the dead flakes of skin (dander) a pet sheds. Any animal with fur can be a source of pet allergy, but pet allergies are most commonly associated with cats and dogs. If you have a pet allergy, the best strategy is to avoid or reduce exposure to the animal as much as possible.
Areas of focus: Immunotherapy, Allergy shot, Eosinophilic esophagitis, Immune deficiencies, Anaphylaxis, Food allergy, Rhinitis, Allerg... Allergy symptoms can range from mild to severe, even life-threatening. Find out what treatments and prevention tips can help.
Allergies and asthma often occur together. The same substances that trigger your hay fever (allergic rhinitis) symptoms, such as pollen, dust mites and pet dander, may also cause asthma signs and symptoms. In some people, skin or food allergies can cause asthma symptoms. This is called allergic asthma or allergy-induced asthma.