What Should You Know About Cold Angioedema?

It may affect exposed areas such as the hands, lips, face, or feet. The swelling can occur with itchy raised patches called hives, although deeper swelling may also occur without an obvious surface rash.

Cold can prompt the body to release inflammatory chemicals in susceptible people. Fluid then moves into deeper skin layers, producing puffiness, tightness, warmth, or tenderness. A cold-triggered episode can be part of [Angioedema](/conditions/angioedema/) and may occur alongside [Hives](/conditions/urticaria/).

Swelling around the mouth or throat matters because it can interfere with breathing or swallowing. A swollen hand after handling something cold is different from swelling that begins in the tongue or throat, so location and accompanying symptoms are useful details for a clinician.

Move away from the cold trigger and warm the affected area gradually. Avoid rubbing, scratching, or placing numb skin directly against a hot surface. Keep a note of the trigger, timing, body areas involved, hives, and any medicines already taken.

A clinician may recommend an [Antihistamine Treatment](/treatments/medical-dermatology/oral-antihistamine-therapy/) for histamine-related symptoms. Do not start a prescription medicine, including [Oral Corticosteroid Treatment](/treatments/medical-dermatology/oral-corticosteroid-therapy/), without suitable medical advice.

Seek emergency help immediately for swelling of the tongue or throat, trouble breathing, wheezing, faintness, confusion, or difficulty swallowing. These symptoms can worsen quickly and should not be monitored at home.

Arrange medical assessment for repeated episodes, extensive [Skin Swelling](/symptoms/skin-swelling/), swelling after a new medicine, or an episode that does not settle after leaving the cold. A clinician can assess possible triggers and provide an action plan.

Ask: Could this be cold-triggered angioedema or another cause of swelling? Should I avoid cold water, chilled foods, or specific temperatures? What warning symptoms mean I should use emergency services? Which treatment is appropriate for my pattern of episodes?