Articles / Understanding urticaria and angioedema
writer
Consultant Physician, Clinical Immunology and Allergy; Director of Immunology, Douglas Hanly Moir Pathology, Sydney
Urticarial lesions are usually intensely pruritic welts that can be generalised or localised. They normally last less than 24 hours in the one place, being migratory, and leave no residual marks on the skin. Angioedema lesions may be uncomfortable or sometimes painful and occur in the deeper dermis or mucosa and may take 72 hours to resolve.
Acute urticaria may be allergic, mediated by inappropriate IgE responses to food allergens. It usually occurs rapidly after exposure to the causative allergen: within 30-60 minutes, up to six hours and rarely eight hours.
The most common allergens are either ingested (food or oral drugs) or parenteral (bee or wasp stings or drugs, for example, penicillin). Aeroallergens are not usually the cause of allergic urticaria except when due to grains (in bakers) and latex. However, people who are allergic to grass pollen may develop localised urticaria on contact, for example, when sitting on the grass.
Lipids Management in GP Demystified
Maintaining Muscles of Independence – Sarcopenia Screening & Management
Work Up of a Breast Lump in GP – Practical Tips and Traps
Managing Opioid Dependence in GP – An Update
writer
Consultant Physician, Clinical Immunology and Allergy; Director of Immunology, Douglas Hanly Moir Pathology, Sydney
Strongly support
Somewhat support
Neither support nor oppose
Somewhat oppose
Strongly oppose
Listen to expert interviews.
Click to open in a new tab
Browse the latest articles from Healthed.
You have completed the Educational Activities (EA) component of this activity.
Select ‘Confirm & claim CPD‘ to confirm you have engaged with this activity in its entirety and claim your CPD.
You will be taken to explore further CPD learning available to you.