Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs AngioedemaUpdated: 2018-05-24Self-careAvoid substances known to trigger angioedema. Take an over-the-counter antihistamine, and apply a cool, wet compress to the swollen area. When to seek immediate medical careSee a doctor immediately if: Throat swelling Trouble breathing When to make a doctor's appointmentMake an appointment to see a doctor if: Persists or worsens © 1998-2022 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use