Hives are an inflammation of the skin triggered when the immune system releases histamine. This causes small blood vessels to leak, which leads to swelling in the skin. Swelling in deep layers of the skin is called angioedema. There are two kinds of urticaria, acute and chronic. Acute urticaria occurs at times after eating a particular food or coming in contact with a particular trigger. It can also be triggered by non-allergic causes such as heat or exercise, as well as medications, foods, insect bites or infections. Although they are often uncomfortable and sometimes painful, hives are not contagious.
1American Academy of Allergy Asthma & Immunology
Monday to Friday:
09:00am - 6:00pm
Saturday:
9:00am - 5:00pm
Sunday and Public Holiday: Closed
Phone: (852) 25871022 / (852) 25871038
WhatsApp:
(852) 61805369
Wechat: meddxhk
Email: health@meddx.com.hk
Address: