Chronic hives - Symptoms and causes - Mayo Clinic
2024年10月1日 · 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.
Hives and angioedema - Symptoms and causes - Mayo Clinic
2023年10月27日 · 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 and substances, including certain foods and medications. Angioedema can arise with hives or alone.
Chronic hives - Diagnosis and treatment - Mayo Clinic
2024年10月1日 · Where hives appear and how long it takes a welt to fade and whether it leaves behind a bruise or other mark. Whether your hives come with painful swelling. You also may need blood tests to determine the cause of your symptoms. An accurate diagnosis will …
Hives and angioedema - Diagnosis and treatment - Mayo Clinic
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. Some studies suggest that stress or fatigue can trigger ...
Dermatitis - Symptoms and causes - Mayo Clinic
Dermatitis is a common condition that causes swelling and irritation of the skin. It has many causes and forms and often involves itchy, dry skin or a rash. Or it might cause the skin to blister, ooze, crust or flake.
Cold urticaria - Symptoms & causes - Mayo Clinic
2021年12月15日 · Cold urticaria (ur-tih-KAR-e-uh) is a skin reaction to cold that appears within minutes after cold exposure. Affected skin develops itchy welts (hives). People with cold urticaria experience widely different symptoms.
Itchy skin (pruritus) - Symptoms and causes - Mayo Clinic
2024年10月23日 · Causes of itchy skin include: Skin conditions. Examples include dry skin (xerosis), eczema (dermatitis), psoriasis, scabies, parasites, burns, scars, insect bites and hives. Internal diseases.
Shingles - Symptoms & causes - Mayo Clinic
2022年8月20日 · Shingles is a viral infection that causes a painful rash. Shingles can occur anywhere on your body. It typically looks like a single stripe of blisters that wraps around the left side or the right side of your torso.
Atopic dermatitis (eczema) - Symptoms and causes - Mayo Clinic
2024年5月15日 · Learn about the causes, symptoms and treatments of this itchy rash that most often begins before age 5, is persistent, and has periods of clearing and relapse.
Hives at night: Alpha-gal syndrome? - Mayo Clinic Connect
2018年12月29日 · For the past five nights, including tonight, I have been experiencing a reaction of some sort. I assume that they are hives. The weird thing is that it only happens, well 95% of the time, the breakout starts in the evening. I know it's not from a bite or something because they are in different spots each night...