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  2. What are hives? A dermatologist explains

    www.aol.com/hives-dermatologist-explains...

    Hives, or urticaria, are itchy pink welts that could appear anywhere on your skin. Some are bumps as small as a pinhead, while others may merge together to cover large patches of your skin.

  3. Dermatographic urticaria - Wikipedia

    en.wikipedia.org/wiki/Dermatographic_urticaria

    In a normal case, the swelling will decrease without treatment within 15–30 minutes, but, in extreme cases, itchy red welts may last anywhere from a few hours to days. In some cases, welts are accompanied with a painful burning sensation. [3] This calls for more urgent treatment as the condition can impact on the patient's quality of life.

  4. Should you see a doctor for that skin rash? Experts share ...

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    A hives rash, also called urticaria, typically appears as raised, inflamed, itchy welts on the skin. They can each be separate, appear in clusters or merge into a larger swollen bump.

  5. Hives - Wikipedia

    en.wikipedia.org/wiki/Hives

    Hives, also known as urticaria, is a kind of skin rash with red and/or flesh-colored, raised, itchy bumps. [1] Hives may burn or sting. [ 2 ] The patches of rash may appear on different body parts, [ 2 ] with variable duration from minutes to days, and do not leave any long-lasting skin change. [ 2 ]

  6. Drug-induced urticaria - Wikipedia

    en.wikipedia.org/wiki/Drug-induced_urticaria

    Drug-induced urticaria; Specialty: Dermatology: Symptoms: itching, burning, redness, and swelling: Usual onset: 1-24 hours after ingestion/application: Duration: 1-72 hours: Diagnostic method: The onset of symptoms following the use of a medication. Treatment: Can resolve without treatment, but may require anti-histamines or corticosteroids.

  7. Physical urticaria - Wikipedia

    en.wikipedia.org/wiki/Physical_urticaria

    Physical urticaria is a distinct subgroup of urticaria (hives) that are induced by an exogenous physical stimulus rather than occurring spontaneously. [1] There are seven subcategories that are recognized as independent diseases. [2] [3] Physical urticaria is known to be painful, itchy and physically unappealing; it can recur for months to ...

  8. Cetirizine - Wikipedia

    en.wikipedia.org/wiki/Cetirizine

    Cetirizine is a second-generation antihistamine used to treat allergic rhinitis (hay fever), dermatitis, and urticaria (hives). [5] It is taken by mouth. [6] Effects generally begin within thirty minutes and last for about a day. [6] The degree of benefit is similar to other antihistamines such as diphenhydramine, which is a first-generation ...

  9. Chronic spontaneous urticaria - Wikipedia

    en.wikipedia.org/wiki/Chronic_spontaneous_urticaria

    Chronic spontaneous urticaria, despite its cause being unknown, is linked to a higher prevalence of autoimmune diseases, and is often worsened by triggers like stress, infections, certain foods, or nonsteroidal anti-inflammatory drugs. The hives and angioedema seen in CSU is thought to be linked to the degranulation of skin mast cells.

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