Diseases
hypersensitivity reaction
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Overview
Hypersensitivity Reaction occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or a food that doesn't cause a reaction in most people.
Symptoms
- hives
- wheezing
- facial swelling
- rash
- anaphylaxis
Causes
- medications, or airborne allergens
- certain foods
- insect stings, or latex or other substances you touch
Risk factors
- have a family history of asthma or allergies, such as hay fever, hives or eczema
- being a child
- have asthma or another allergic condition
Diagnosis
- skin test.
- blood test.
- physical exam
- signs and symptoms
Medicines used
Frequently asked questions
What is hypersensitivity reaction?
Hypersensitivity Reaction occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or a food that doesn't cause a reaction in most people.
What are the symptoms of hypersensitivity reaction?
hives, wheezing, facial swelling, rash, anaphylaxis
What causes hypersensitivity reaction?
medications, or airborne allergens; certain foods; insect stings, or latex or other substances you touch
Which medicines are used for hypersensitivity reaction?
cyproheptadine
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