2. Allergic vasculitis
Allergic vasculitis is an extreme reaction to a drug, infection, or foreign substance that leads to inflammation and damage to blood vessels of the skin.
www.uhseast.com

3. Allergic Vasculitis - Symptoms, Diagnosis, Treatment of Allergic Vasculitis - NY Times Health Information
Allergic vasculitis is hypersensitivity to a drug or foreign substance that leads to inflammation and damage to blood vessels of the skin.
health.nytimes.com

4. Allergic vasculitis definition - Medical Dictionary definitions of popular medical terms easily defined on MedTerms
Allergic vasculitis : A disease (also more commonly called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy.
www.medterms.com