Angioneurotic edema is divided into hereditary angioneurotic edema and acquired angioneurotic edema, hereditary may last for a lifetime, and acquired subsides on its own in 1~3 days when it is removed from the allergen.
Angioneurotic edema is a limited edema in the mucous membrane or subcutaneous loose tissue, related to genetic factors, food, dust, drug allergies and other factors, mainly manifested as local skin swelling, pain, burning sensation. In severe cases, it may involve the larynx, resulting in laryngeal edema, which may lead to asphyxiation in severe cases.
Generally speaking, angioneurotic edema caused by genetic factors may be accompanied by lifelong, and angioneurotic edema caused by allergic factors will usually subside in 1~3 days if the allergen is removed.
In addition, if the symptoms of angioneurotic edema are severe, it is necessary to use drugs such as loratadine and cetirizine to improve the symptoms, and if necessary, systemic application of glucocorticosteroids such as dexamethasone to alleviate the discomfort, and the drugs need to be used in accordance with the doctor’s instructions. When life is in danger, active resuscitation is required.