Many people with angioedema also have another condition called urticaria, which is also known as hives. This is a raised, red and itchy rash
that appears on the skin. Angioedema is of four types allergic, idiopathic, drug induced and hereditary.
Therapy is based on the cause. Anti histamines from the mainstay of therapy for the symptoms. So, take OTC antihistamines like Benadryl. Oral antihistamines like chlopheneramine and lovatidine are also effective.