What is the definition of urticaria

what is the definition of urticaria

It can be a reaction to the piece of food you ate, the new medication you took, or irritants in the air you breathe, among other causes. Urticaria was named in the 18th century for its resemblance to the rash caused by nettle, a plant of the genus Urtica. That genus name reflects the Latin word for "nettle" and is also related to the Latin verb urere, meaning "to burn.". urticaria. [ ur?ti-ka?re-ah] a vascular reaction of the skin marked by transient appearance of slightly elevated patches (wheals) that are redder or paler than the surrounding skin and often attended by severe itching; the cause may be certain foods, infection, or emotional stress.

Hives can be caused by a number of things. It can be a reaction to the piece of food you ate, the new medication you took, or irritants in the air you breathe, among other causes.

Urticaria was named in the 18th century for its resemblance how to unwrite protect a memory card the rash caused by nettle, a plant of the genus Urtica. That genus name reflects the Latin word for "nettle" and is also related to the Latin verb urere, meaning "to burn. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'urticaria. Send us feedback.

See more words what is the definition of urticaria the same year. Accessed 23 Apr. More Definitions for urticaria. What made you want to look up urticaria? Please tell us where you read or heard it including the quote, if possible.

Subscribe to Wnat largest dictionary and get thousands more definitions and advanced search—ad free! You've waited days, weeks, months, even years for What's the difference? Two words of uncertainty. We're intent on clearing it up. We're gonna stop you right there. How to use a word that literally drives some pe The awkward case os 'his or her'.

Can you correctly identify these flowers? Which of thee things doesn't belong? Test your knowledge - and maybe learn something a Login or Register. Save Word. Definition definitioon urticaria. Other Words from urticaria Did You Know? Example Sentences Learn More about urticaria. Keep scrolling for more. Did You Know? Examples of urticaria in a Sentence Recent Examples on the Web Pai founder Sarah Brown, who ddefinition from chronic urticariacreated this brand to help people manage the side effects of allergies and nourish sensitive skin without potential irritants.

Urhicaria Out About the Skin Condition BTS Member V Has," 15 July In some cases, marks on your body may be hives also called urticariawhich is characterized by red, itchy bumps or welts that appear suddenly upon exposure to an allergen.

Her baby sister is luckily not shown any signs of it. First Known Use of urticaria circain the meaning defined above. History and Etymology for urticaria New Latin, from Latin urtica nettle. Learn More about urticaria. Time Definitiob for urticaria The first known use of urticaria was circa See more words from the same year.

Listen to Our Podcast about urticaria. Get Word of the Day delivered to your inbox! Sign Up. Statistics for urticaria Look-up Popularity. Style: MLA. Medical Definition of urticaria. More from Merriam-Webster on urticaria Britannica. Comments urtixaria urticaria What made you want to look up urticaria? Show Comments Hide Comments. Get Word of the Day daily email! Test Te Vocabulary.

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Urticaria definition, a transient condition of the skin, usually caused by an allergic reaction, characterized by pale or reddened irregular, elevated patches and severe itching; hives. See more. Jan 12,  · Hives, also known as urticaria, are red and sometimes itchy bumps on your skin. Learn about the hives symptoms, diagnosis and treatment here. Mar 04,  · What is urticaria? Urticaria is also called hives. Hives can change size and shape, and appear anywhere on your skin. They can be mild or severe and last from a few minutes to a few days.

Skip to content. Learn the signs and symptoms of food allergy. The skin rash could be hives, and the itching from hives may range from mild to severe. Hives, also known as urticaria, affects about 20 percent of people at some time during their lives. Scratching, alcoholic beverages, exercise and emotional stress may worsen the itching.

Symptoms can last anywhere from minutes to months — or even years. There are two types of hives — short-lived acute and long-term chronic. Neither is typically life-threatening, though any swelling in the throat or any other symptom that restricts breathing requires immediate emergency care. Hives usually are caused by other things besides infection, although it could be from a virus.

It could be from an allergen, or some sort of an allergy that you have. It could be from a hormonal change. And it even could be emotional in some situations.

Chronic hives occur almost daily for more than six weeks and are typically itchy. Each hive lasts less than 24 hours. They do not bruise nor leave any scar. They typically do not have an identifiable trigger. If your hives last more than a month or if they recur over time, see an allergist , who will take a history and perform a thorough physical exam to try and determine the cause of your symptoms.

A skin test and challenge test may also be needed to identify triggers. Therapies range from cool compresses to relieve itching to prescription antihistamines and other drugs, such as anti-inflammatory medications and medications that may modify your immune system.

Angioedema — swelling of tissue beneath the surface of the skin — can be mistaken for, or associated with hives. It can be caused by allergic reactions, medications or a hereditary deficiency of some enzymes. The following symptoms may indicate angioedema:. The best way to identify your symptoms is to talk to an allergist who can diagnose and treat both hives and angioedema.

In some cases, the trigger is obvious — a person eats peanuts or shrimp , and then breaks out within a short time. Other cases require detective work by both the patient and the physician because there are many possible causes.

If the hives have gone on for a long time, the cause is not usually identified. A single episode of hives does not usually call for extensive testing. If a food allergy is suspected, consider keeping track of what you eat. If you have been keeping a food diary, show it to your allergist. Your allergist may want to conduct skin tests, blood tests and urine tests to identify the cause of your hives.

If a medication is suspected as the trigger, your allergist can conduct similar tests, and a cautious drug challenge - similar to an oral food challenge, but with medications — may also be needed to confirm the diagnosis. Because of the possibility of anaphylaxis, a life-threatening allergic reaction, these challenge tests should be done only under strict medical supervision, with emergency medication and equipment at hand. In cases where vasculitis inflammation of the blood cells may be the cause, your allergist may conduct a skin biopsy and send it to a specialist to examine under a microscope.

Researchers have identified many — but not all — of the factors that can cause hives. These include food and other substances you take, such as medications. Some people develop hives just by touching certain items. Some illnesses also cause hives. Here are a few of the most common causes:. Antihistamines — available either over the counter or by prescription — are a frequently recommended treatment for hives.

They work by blocking the effect of histamine, a chemical in the skin that can cause allergy symptoms, including welts. They are effective and long-lasting may be taken once a day and have few side effects. Your allergist may recommend a combination of two or three antihistamines to treat your hives, along with cold compresses or anti-itch balms to ease the symptoms.

Severe episodes of urticaria may require temporary treatment with prednisone, a similar corticosteroid medication or an immune modulator, which can reduce the severity of the symptoms. If your reaction involves swelling of your tongue or lips, or you have trouble breathing, your allergist may prescribe an epinephrine adrenaline auto-injector for you to keep on hand at all times. These can be early symptoms of anaphylaxis, a potentially fatal allergic reaction that impairs breathing and can send the body into shock.

The only treatment for anaphylaxis is epinephrine. Emergency medical services carry epinephrine and can provide prompt treatment. You should also go to the emergency room after using an auto-injector. If the cause of hives can be identified, the best treatment is to avoid the trigger or eliminate it:. Some cases of hives last for more than six weeks and can last months or years.

This condition is known as chronic hives. If the cause cannot be identified, even after a detailed history and testing, the condition is called chronic idiopathic urticaria. Chronic hives may also be associated with thyroid disease, other hormonal problems or, in very rare instances, cancer. Even this condition usually dissipates over time. In physical urticaria, the hives have a physical cause, such as exposure to heat, cold or pressure. Inflammation of the blood vessels, or vasculitis, can also cause hives.

These hives are more painful than itchy, may leave a bruise on the skin and often last more than a day. Find answers with an allergist. Toggle navigation. Enter terms. Contact Dermatitis Eczema. Types of Allergies. Food Allergy. Skin Allergy. Learn about allergic skin reactions and what causes them. Dust Allergy. Insect Sting Allergy. Learn the signs and symptoms of different types of insect sting allergy. Pet Allergy. Pet allergies can contribute to constant allergy symptoms, such as causing your eyes to water, or causing you to start sneezing.

Eye Allergy. Learn about eye allergies, a condition that affects millions of Americans. Drug Allergies. If you develop a rash, hives or difficulty breathing after taking certain medications, you may have a drug allergy. Allergic Rhinitis.

If you sneeze a lot, if your nose is often runny or stuffy, or if your eyes, mouth or skin often feels itchy, you may have allergic rhinitis. Latex Allergy. Allergic reactions to latex may be serious and can very rarely be fatal. If you have latex allergy you should limit or avoid future exposure to latex products. Mold Allergy. Learn the signs and symptoms of mold allergy.

Sinus Infection. Sinus infection is a major health problem. It afflicts 31 million people in the United States. Cockroach Allergy. Learn the signs and symptoms of cockroach allergy.

Types of Asthma Adult-Onset Asthma. Can you get asthma as an adult? What causes adult onset asthma? Read more to find out, and see an allergist for treatment. Allergic Asthma. Learn about the triggers and treatment for allergic asthma and how an allergist can help you manage allergy and asthma symptoms. How does chronic obstructive pulmonary disorder or COPD overlap with asthma? Learn the symptoms and treatment options and see an allergist for help.

If you start wheezing or coughing during exercise, or if physical exertion makes it difficult for you to breathe, you may have exercise-induced asthma. Nonallergic Asthma. Learn about the triggers and treatment for non-allergic asthma and how an allergist can help you manage symptoms. Occupational Asthma. If you experience wheezing, coughing, chest tightness or shortness of breath at work, you may have occupational asthma.

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