Whether they’re large or small, hives are unbearable. These red, itchy welts appear on the skin sometimes out of nowhere and without obvious explanation. Fortunately, most instances of hives will resolve within a few days.
What Causes Hives?
Hives can be caused by several factors, both external and internal. Common causes of hives include:
- Fragrances in lotions and detergents
- Airborne allergens
A form of hives known as acute urticaria can last up to six weeks. Acute urticaria is often caused by infections, food allergies, or medications. Parasites or unknown diseases may also contribute to acute urticaria. Hives which last for longer than six weeks are referred to as chronic urticaria.