A hive often goes away in 24 hours or less. New hives may appear as old ones fade, so hives may last for a few days or longer. A bout of hives usually lasts less than 6 weeks. These hives are called acute hives. If hives last more than 6 weeks, they are called chronic hives.
Acute hives often result from an allergy, but they can have many other causes. The medical term for hives is urticaria (ur-tih-CAR-ee-uh). When large welts occur deeper under the skin, the medical term is angioedema (an-gee-oh-eh-dee-ma). This can occur with hives, and often causes the eyelids and lips to swell. In severe cases, the throat and airway can swell, making breathing or swallowing difficult.
If this occurs, the person needs emergency care right away.
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OTHER Skin Conditions
Acne is the most common skin condition in the United States. Although it’s common, accurate information about acne can be scarce.
An acne cyst forms when the pore fills with dead skin cells oil, and bacteria. A cyst goes deep into the skin and can hurt.
An actinic keratosis or AK is a rough, dry, scaly patch or growth that forms on the skin. An AK forms when the skin is badly damaged by ultraviolet (UV) rays from the sun or indoor tanning.
Alopecia (Hair Loss)
Millions of people experience hair loss. Some people see their hair re-grow without doing anything. Others need treatment for their hair to re-grow. Sometimes, hair will not re-grow.
This is a common skin disease in children. Children often get atopic dermatitis (AD) during their first year of life. If a child gets AD during this time, dry and scaly patches appear on the skin.
Atypical Mole (Dysplastic)
This type of mole can look like melanoma. It is not melanoma. But you have a higher risk of getting melanoma if you have certain risk factors.
Basal Cell Carcinoma
Basal cell carcinoma (BCC) is the most common form of skin cancer. More than two million cases of this skin cancer are diagnosed in the United States each year.
Bedbugs are tiny insects that feed on human blood. They hide in dark places close to where humans sleep and usually crawl out to feed while people are fast asleep.
Dry skin is common. It can occur at any age and for many reasons. Using a moisturizer often helps repair dry skin.
Eczema is a word that means irritated skin. Doctors don’t really know why some kids and adults get eczema, and others don’t. They think it might happen for a variety of reasons.
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