Hives
These are raised, itchy, red bumps on your skin. They can be called “welts.” They can be an allergic reaction to an allergen. They can also show up without a cause and maybe autoimmune-like.
These are raised, itchy, red bumps on your skin. They can be called “welts.” They can be an allergic reaction to an allergen. They can also show up without a cause and maybe autoimmune-like.
Your body releases histamine and other chemicals into the blood when you have an allergic reaction. These chemicals can cause symptoms such as itching, swelling, and other symptoms, like hives.
Angioedema is swelling of the deeper tissue that sometimes happens with hives. This type of swelling can be life threatening if it involves your mouth or throat.
Substances that can act as allergens and can trigger hives are:
You can get them from:
The cause of hives in often not known. This may mean the cause could be autoimmune.
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