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Cold urticaria (essentially meaning cold hives) is a disorder in which large red welts called hives (urticaria) form on the skin after exposure to a cold stimulus. [1] The hives are usually itchy and often the hands, feet and other parts of the body will become itchy and swollen as well.
A cold sore [a] is a type of herpes ... The rash usually heals within ten days, ... A series of scabs will form over the sore (called Meier Complex), each one smaller ...
The rash that develops from poison ivy, poison oak, and poison sumac contact is commonly mistaken for urticaria. This rash is caused by contact with urushiol and results in a form of contact dermatitis called urushiol-induced contact dermatitis. Urushiol is spread by contact but can be washed off with a strong grease- or oil-dissolving ...
Instead, try cold compresses, oatmeal baths, and aloe vera to soothe the rash, she adds. You can also take 24-hour over-the-counter (OTC) antihistamines to reduce itching and inflammation, says Dr ...
A rash is uncomfortable at best, and even more so if it’s in your nether regions, such as a butt rash. Turns out, butt rashes could be related to a number of issues—most of which are no biggie ...
Cold sores versus canker sores To make a true diagnosis of the cold sore virus, your doctor needs to take a culture from the area and send it to the lab for analysis, says Dr. Friedman.
Oral herpes involves the face or mouth. It may result in small blisters in groups, often called cold sores or fever blisters, or may just cause a sore throat. [2] [6] Genital herpes involves the genitalia. It may have minimal symptoms or form blisters that break open and result in small ulcers. [1] These typically heal over two to four weeks. [1]
6. Purple spots on your hands and feet. These could be a sign of a bacterial infection of the heart, Kroshinsky said. 7. A circular-shaped rash in an area where Lyme disease is endemic.