
Chronic hives - Symptoms and causes - Mayo Clinic
Oct 1, 2024 · 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.
Hives and angioedema - Symptoms and causes - Mayo Clinic
Oct 27, 2023 · Hives — also known as urticaria (ur-tih-KAR-e-uh) — is a skin reaction that causes itchy welts that range in size from small spots to large blotches. Hives can be triggered by many situations …
Cold urticaria - Symptoms & causes - Mayo Clinic
May 6, 2025 · Cold urticaria (ur-tih-KAR-e-uh) is a reaction that appears within minutes after skin is exposed to the cold. Itchy welts, also called hives, arise on affected skin.
Chronic hives - Diagnosis and treatment - Mayo Clinic
Oct 1, 2024 · Kang S, et al., eds. Urticaria and angioedema. In: Fitzpatrick's Dermatology. 9th ed. McGraw Hill; 2019. https://accessmedicine.mhmedical.com. Accessed Aug. 29, 2019.
Hives and angioedema - Diagnosis and treatment - Mayo Clinic
Oct 27, 2023 · Kang S, et al., eds. Urticaria and angioedema. In: Fitzpatrick's Dermatology. 9th ed. McGraw-Hill; 2019. https://accessmedicine.mhmedical.com. Accessed Aug. 29, 2019.
Dermatographia (Dermatographism) - Symptoms and causes - Mayo …
Oct 23, 2024 · Burks AW, et al. Urticaria and angioedema. In: Middleton's Allergy: Principles and Practice. 9th ed. Elsevier; 2020. https://www.clinicalkey.com. Accessed Sept. 29, 2022.
Cold urticaria - Diagnosis & treatment - Mayo Clinic
May 6, 2025 · An ice cube is placed on your skin for five minutes to diagnose cold urticaria. If you have cold urticaria, a raised bump, also called a hive, will form a few minutes after the ice cube is taken …
Angioedema and Urticaria Specialty Group - Mayo Clinic
Jun 4, 2020 · Urticaria is the medical term for hives. Hives are red swellings of the skin that occur in groups on any part of the skin. Angioedema is a swelling similar to urticaria, but the swelling is …
Food allergy - Symptoms and causes - Mayo Clinic
Aug 30, 2024 · Overview Food allergy is an immune system reaction that happens soon after eating a certain food. Even a tiny amount of the allergy-causing food can trigger symptoms such as hives, …
Costochondritis - Symptoms & causes - Mayo Clinic
Sep 5, 2025 · Costochondritis is sometimes called chest wall pain syndrome, costosternal syndrome or costosternal chondrodynia. Sometimes, there is swelling with the pain, which is a condition called …