Urticaria (commonly known as hives) are swellings on the skin that often look like mosquito bites. They have raised red surfaces and can be sized between a few millimetres and several centimetres.
Hives are common and about 20 percent of people will experience them at least once in their lifetime. Hives are often mistaken for insect bites or stings. In reality, they’re caused by a range of triggers, and an exact cause can sometimes be hard to pinpoint.
Hives can present on any area of the body. Their shapes vary and they can last for minutes or hours, but they generally last less than 24 hours. They do not bruise or scar the skin.