Allergic vasculitis is an extreme reaction to a drug, infection, or foreign substance. It leads to inflammation and damage to blood vessels of the skin.
Causes, incidence, and risk factors
Allergic vasculitis is caused by an
Often, the cause of the problem cannot be found even with a careful medical history.
- Purple-colored spots and patches on the skin
- Skin sores mostly located on the legs, buttocks, or trunk
Blisterson the skin
- Hives (
urticaria), may last longer than 24 hours
- Open sores with dead tissue (necrotic
Signs and tests
The doctor will base the diagnosis on symptoms and the appearance of how your skin looks after you take a certain medicine or are exposed to a foreign substance (
Results from an
The goal of treatment is to reduce inflammation.
Your health care provider may prescribe aspirin, nonsteroidal anti-inflammatory drugs (NSAIDs), or corticosteroids to reduce inflammation of the blood vessels. (DO NOT give aspirin to children except as advised by your health care provider.)
Your doctor may tell you to stop taking a medicine that could be causing this condition. Do not stop taking any medicine without first talking to your doctor.
Allergic vasculitis usually goes away over time. The condition may come back in some people.
- Lasting damage to the blood vessels or skin with scarring
- Inflammation of the blood vessels affects the internal organs
Calling your health care provider
Call your health care provider if you have symptoms of allergic vasculitis.
Do not take medicines which have caused an allergic reaction in the past.