How effective is oral corticosteroid treatment for angioedema?

Angioedema is deeper swelling, often affecting the lips, eyelids, face, hands or feet. Its mechanism may involve histamine or other pathways, so a corticosteroid is not suitable for every episode. A clinician considers the pattern, likely trigger, other medicines and whether hives are present. Improvement can take time, and treatment may need to address the cause rather than swelling alone.

Follow the individual plan supplied by your clinician and do not borrow or restart corticosteroids without advice. Record foods, medicines, insect stings and recent infections that preceded attacks. If prescribed, learn when to use [Oral Corticosteroid Treatment](/treatments/medical-dermatology/oral-corticosteroid-therapy/). Understanding [Angioedema](/conditions/angioedema/) can help you recognise recurrence, but a familiar episode can still become urgent.

Call emergency services immediately for tongue or throat swelling, hoarseness, trouble breathing, wheezing, difficulty swallowing, dizziness or collapse. Do not wait for an oral corticosteroid to work. Prompt medical assessment is also needed for rapidly increasing swelling, severe abdominal pain or repeated episodes without a clear trigger.

Ask which mechanism is suspected, whether you need an emergency action plan, which medicines to carry, how to identify a trigger, and what follow-up is needed after swelling settles.