Feb 08, · Hives in the throat can block your airway, making it difficult to breathe. Outlook (Prognosis) Hives may be uncomfortable, but they are usually harmless and disappear on their own. When the condition lasts longer than 6 weeks, it is called chronic hives. Usually no cause can be found. Most chronic hives resolve on their own in less than 1 year. Stress hives can look a little like bug bites: both are red, puffy, and itchy, and may appear initially as individual bumps, says Stevenson. However, hives are more often irregular in shape and can join together in larger patches, especially if you scratch them. A bad case of hives may appear as a single large patch of puffy, raised skin.
Hives (medically known as urticaria) appear on the skin as wheals that are red, very itchy, smoothly elevated areas of skin often with a blanched center. They appear in varying shapes and sizes, from a few millimeters to several centimeters in diameter anywhere on the body. Jul 14, · Amoxicillin rash may also show up as hives, which are red or white bumps that develop on the skin. Or, it may appear as a maculopapular rash with areas that resemble flat, red patches.
Skin rashes can be symptoms of a variety of mild to serious conditions. Since many factors go into accurate diagnosis and treatment of rashes, it's important to see a medical professional. If you experience fever, pain, or trouble breathing in addition to a rash, you should seek immediate medical care. Aug 14, · Fact Checked Hives, also called urticaria, appear as itchy, red welts on the surface of the skin and are usually caused by an allergic reaction. Hives in adults start suddenly and go away quickly, can vary in size, appear anywhere on the body, and can move around on the body throughout the course of the reaction. Is This an Emergency?