Hives are an indication of allergic reaction, and are generally risk-free if they are the only indication you have. Hives are a form of allergic reaction that happens when something activate the discharge of a chemicals, including histamine, from cells in a body. Kids with hives and more serious symptoms, like, breathing or swallowing problem, wheezing, inflammation in mouth or throat, or may have a severe allergic reaction. In these cases kids need urgent medical attention.
In medical terms hives is referred to as urticaria, welts, wheals, or nettle rash. A hive, or wheal, is a spherical, red, spongy wound that develops and changes over minutes to hours. It is generally encircled by a region of redness called a flare. Hives can differ in size from a few millimeters to massive hives covering entire edges.
Hives are divided in two types:
1. Acute hives
This is considerably the most common type. When symptoms of hives last in less than 6 weeks than that type is called as acute hives.
2. Chronic hives
If signs of hives go on for more than 2 months; it is called chronic hives. About 1 in every 1,000 person suffers from chronic hives. Specialists are not totally sure about the causes of chronic hives. But it is directly associated with our immune system.