![]() The characteristic raised skin lesions can appear in any area of the body.any other condition that causes inflammation of blood vesselsĬhronic hives may start as an autoimmune response, but the exact cause is unclear.autoimmune conditions, such as rheumatoid arthritis, systemic lupus erythematosus, Sjögren’s disease, celiac disease, and type 1 diabetes.intestinal parasites, such as Giardia lamblia.bacterial infections, such as some urinary tract infections and strep throat.viral infections, such as the flu, the common cold, glandular fever, or hepatitis B. ![]() Some examples of health conditions that can cause hives include: adrenalin, which the body releases during exercise and exposure to heat or stress.a high body temperature, due to sweating, exercise, anxiety, or a hot shower.extreme temperatures or changes in temperature.pressure, from a tight belt, for example.What are the effects of a latex allergy? Physical triggersĪ physical factor other than an allergen can cause hives. additives in some foods, cosmetics, and other products.some plants, including nettles, poison ivy, and poison oak.kiwi, banana, chestnuts, or mango, in people with a latex allergy.nuts, eggs, seafood, or another food allergen.angiotensin converting enzyme inhibitors, which are drugs for high blood pressure.some nonsteroidal anti-inflammatory drugs, or NSAIDs, such as aspirin.If acute hives results from an allergic reaction, the cause may be: The reaction can occur if a person consumes something or touches something that they are allergic to. As fluid accumulates under the skin, small bumps form. This fluid accumulates in the skin and causes inflammation and a rash. Next, tiny blood vessels called capillaries leak fluid. When an allergic reaction occurs, the body releases a protein called histamine. ![]() Hives can develop when the body reacts to an allergen. In the case of chronic hives, some experts believe that it may result from an autoimmune reaction, but they are still unsure. Sometimes there is no clear reason why they occur. another physical trigger, such as extreme temperatures.Anyone who might have anaphylaxis should receive urgent medical care.īelow, we explore hives and its treatments in detail. Being aware of other symptoms of this condition, such as swelling of the face, tongue, or throat, a rapid heartbeat, or lightheadedness is important. If a person has hives, they have a risk of developing a life threatening condition called anaphylaxis. However, in some cases, hives occurs with a contagious infection. It is not possible to catch hives from another person. A person with chronic urticaria may have hives every day for months or years. Doctors do not know exactly why it happens, but it may accompany a chronic health condition or an autoimmune condition. Acute hives lasts 6 weeks or less, and it may result from exposure to an allergen or irritant, such as a food or touching a nettle.Ĭhronic urticaria is a long-term condition. Hives affects around 20% of people at some time in their lives. ![]() The medical name for hives is “urticaria.” People also call it welts, wheals, or nettle rash. Hives often appears as a raised, itchy rash. ![]()
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