Chronic hives - Symptoms and causes - Mayo Clinic
网页Hives — also called urticaria (ur-tih-KAR-e-uh) — is a skin reaction that causes itchy welts. Chronic hives are welts that last for more than six weeks and return often over months or years. Often, the cause of chronic hives isn't clear. The welts often start as itchy patches that turn into swollen welts that vary in size.
Random Hives: Possible Causes, Symptoms, and Treatment
网页2022年9月12日 · Hives (also called urticaria) are itchy, red, and raised bumps on the skin. Hives can happen for several possible reasons, and they can also seem to appear without cause. Hives usually are not dangerous. They can be short term and disappear within a day, or they can last weeks or longer.
Hives and angioedema - Diagnosis and treatment - Mayo Clinic
网页2023年10月27日 · If you're experiencing mild hives or angioedema, these tips may help relieve your symptoms: Avoid triggers. These can include foods, medications, pollen, pet dander, latex and insect stings. If you think a medication caused your rash, stop using it and contact your primary care provider.
Hives, Urticaria, and Angioedema: Symptoms, Causes, and Treatment - WebMD
网页2023年4月17日 · If you have hives or angioedema and any of the following symptoms, call your doctor right away: Dizziness; Wheezing; Trouble breathing; Tightness in the chest; Swelling of the tongue, lips, or...
Hives: Signs and symptoms - American Academy of Dermatology
网页2024年5月30日 · Chest. Upper arms. Upper legs. Some people also develop deep swelling called angioedema (an-jee-oh-uh-DEE-mah). This commonly develops on the face, especially the eyelids or lips. It can also affect the tongue, throat, arms, or legs. What do hives look like? This skin condition can appear on your skin in …
Urticaria (Hives): Signs, Symptoms, and Complications - Verywell Health
网页2023年6月25日 · Hives are a specific type of rash caused when tissues beneath the surface of the skin fill with fluid, causing raised, red, itchy bumps referred to as weals (or welts). Allergy is the most common cause, but hives can also occur due to an infection, autoimmune disease, or sudden changes in the environment. Verywell.
Hives Information | Mount Sinai - New York - Mount Sinai Health System
网页Hives (urticaria) are raised, red, itchy welts, seen here on the chest. The majority of urticaria develop as a result of allergic reactions. Occasionally they may be associated with autoimmune diseases, infections (parasitosis), drugs, malignancy, or other causes.
Hives (Urticaria) Guide: Causes, Symptoms and Treatment Options - Drugs.com
网页2024年3月28日 · Treatment. Prognosis. What is Hives (Urticaria)? Hives, also called urticaria, are circumscribed swellings on the skin that often are itchy. Often they are pink or red, but they don't have to be. Hives happen when the cells in the skin called mast cells release histamine, a chemical that causes tiny blood vessels (capillaries) to leak fluid.
Itchy Chest: Rash, Causes, Treatment - Verywell Health
网页2022年8月29日 · While chest itching is not an emergency, if you notice severe symptoms—such as difficulty breathing or chest pain—you should seek urgent medical care as these symptoms can be severe. In this article, learn about the potential symptoms, causes, and treatments available for an itchy chest.
Common Rashes: Types, Symptoms, Treatments, & More - WebMD
网页2023年11月21日 · 6 min read. What Are Rashes? Rashes are unusual changes in skin color or texture. They normally come from skin inflammation, which can have different causes. There are many types of rashes,...