Facial swelling is often quickly linked to allergies or cosmetic procedures, but medical experts say that assumption can be misleading. Dr Kunal Sood, a Maryland-based physician specialising in anesthesiology and interventional pain medicine, recently explained that facial swelling is frequently caused by angioedema, a condition that does not always stem from an allergic reaction.
Angioedema occurs when fluid suddenly leaks from small blood vessels beneath the skin, leading to rapid swelling. According to Dr Sood, this swelling most commonly affects the lips eyelids cheeks and tongue, though it can occur elsewhere in the body. While allergies are a well-known trigger, they are only one part of the picture.
Dr Sood highlighted that allergic angioedema is usually accompanied by symptoms such as hives redness itching and a rapid onset. In severe cases, swelling around the lips tongue or throat can interfere with breathing and requires immediate medical attention. However, angioedema can also develop without any allergic response.
Non-allergic angioedema may be triggered by medications such as ACE inhibitors used to manage high blood pressure. In some cases, this reaction can appear even after years of uneventful use. Another form, hereditary angioedema, is linked to a deficiency of the C1 inhibitor protein and tends to develop more slowly without hives or itching.
These non-allergic forms do not respond to standard allergy treatments like antihistamines or epinephrine, making correct diagnosis essential. Understanding the underlying cause of facial swelling is crucial, as treatment approaches differ significantly depending on whether angioedema is allergic or non-allergic.
