What Do Hives Look Like?

What Do Hives Look Like?

There are several types of skin allergies. Each type has its own define onset and appearance. Most skin allergies appear like blotches or any raised skin in clusters or not. Others reveal different. Looks different and destabilize the immune system distinctively.  In order to further learn one of its kinds, a discussion on hive is presented below.

Hives are a very itchy rash, sometimes also referred to as “welts”, but medically better known as Urticaria. Hives are raised pink spots with pale centers, ranging in size from ½ inch to several inches across.  The raised skin rashes are similar to that of a mosquito bites. They are usually oval or round in shape, but this is quite variable.  They are a common allergic reaction which can occur anywhere on the body in as small as a pencil eraser or as large as a dinner plate. They can rapidly change shape, size, and even location. They can even wax and wane depending on time of day and on the external temperature.

What causes hives?

Hives are an allergic reaction, usually to a virus, but also possibly to a food, medication, insect bite, topical irritant (lotion, detergent, soap, plants, poison oak, etc.), or a wide range of other substances. Approximately 80 percent of cases of childhood hives are caused by a virus, with or without other symptoms such as fever, runny nose, cough, or sore throat. The child may also have had one or more of these symptoms in the very recent past.

Hives occur in the skin. Underneath the lining of the skin, gut, lungs, nose and eyes are mast cells. These are designed to kill worms and parasites. Mast cells are like “land-mines”, and contain “bags” filled with irritant chemicals including histamine. When these are released in small amounts, they cause local itch and irritation. In larger amounts, they will cause fluid to leak out of blood vessels, resulting in swelling of the skin. Occasionally, hives may not be itchy at all.