Got a symptom but not sure what's causing it? Use our award-winning Smart Symptom Checker to find out – it's free!
Angioedema is the swelling of the deeper layers of the skin, caused by a build-up of fluid.
Our Health A-Z contains more information on Angioedema.
If you are worried about this condition you can try our free AI Symptom Checker here.
Anaphylaxis is a severe, potentially life-threatening allergic reaction that can develop rapidly.
Our Health A-Z contains more information on Severe allergic reaction.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.