In particular, angioedema like hives, may be caused by an allergic reaction. Histamine and other chemicals are released into the bloodstream and
causes symptoms such as
of swelling, welts that usually occur around the eyes and lips. They may also be found on the hands, feet, and throat. Associated symptoms may include: abdominal cramping, beathing difficulty, sollen eyes and mouth, or sen lining of the eyes.Diagnosis is through physical examination and rrely, allergy testing.