What should you know about neurogenic angioedema?

Angioedema affects deeper layers of skin and soft tissue, so swelling may feel tight, warm, or tender rather than looking like a surface rash. It can affect the lips, eyelids, tongue, face, hands, feet, or other areas. Nerve-related signalling may amplify inflammation and uncomfortable sensations. Hives can occur alongside angioedema, but swelling can also appear without raised itchy patches. A clinician considers the timing, distribution, medicines, foods, infections, and previous episodes when assessing the cause.

The symptom itself does not identify the cause. A medical review helps distinguish angioedema from contact reactions, infection, and other sources of skin swelling.

Note when the swelling began, which areas changed, whether it is spreading, and any new medicine, food, product, illness, or insect exposure. Avoid a suspected trigger until a clinician has advised you. Do not start leftover medicines or borrow someone else’s treatment. Depending on the assessment, a clinician may discuss an oral antihistamine treatment or an oral corticosteroid treatment, but the choice depends on the suspected mechanism and your health history. Take photographs if the swelling comes and goes, because the skin may look different by the appointment.

Call emergency services immediately for swelling of the tongue or throat, trouble breathing, noisy breathing, difficulty swallowing, faintness, confusion, or rapidly worsening symptoms. These signs can threaten the airway and should not be monitored at home. Seek prompt medical care for new facial swelling, repeated episodes, severe pain, fever, or swelling after starting a medicine, even if breathing is currently normal.

Ask what pattern of angioedema fits your symptoms, whether your medicines could contribute, which warning signs require emergency action, and what to record if another episode occurs.