Background
Allergy is a hypersensitive reaction of the immune system against a foreign substances (antigens). People who have allergy are sensitive to particular types of antigen. Anaphylaxis is a severe allergic reaction. It can be life-threatening if not treated promptly. Death can be prevented if anaphylaxis is recognized immediately and cared for quickly.
Food ingestion is a common cause of allergic reaction in individuals with hypersensitivities to those foods. The most life threatening allergic reactions to food is usually caused by peanut. Seafood, cow’s milk, eggs, soy and wheat are other examples. Some people are allergic to particular chemicals and drugs, with the most common ones being antibiotics, sulpha drugs and latex.
Common triggers to allergic reaction include bee stings or insect venom, certain medications, pollen and dust. Allergic reactions can range from mild to severe.
Symptoms and signs
Signs and symptoms for mild to moderate allergic reaction, which may precede anaphylaxis - Swelling of the lips, face, eyes - Hives, itching, rash - Weakness - Nausea - Stomach cramps - Vomiting - Dizziness Some common triggers to allergic:
Medications
Bee stings
Food
Allergy & Anaphylaxis
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