Urticaria, Hives
Urticaria, more widely known as hives, is characterized by acutely raised, often itchy red plaques on the skin. The appearance of urticaria can be quite striking when sudden and widespread.
The causes of urticaria are numerous. Most often, acute urticaria may be attributed to:
-Antibiotics
-Contact with an allergic substance
-Allergies
-Aspirin
-Opioids
-Parasite infection
-Physical/emotional stimuli
-Preceeding viral upper respiratory tract infection (may be majority of cases)
Chronic urticaria is often caused by a recent upper respiratory tract viral illness, hypothyroidism, or prolonged parasitic infection. However, in over 60% of chronic urticaria cases, the cause is not found. Caution must be taken by the primary physician as urticaria may at times be a marker for other systemic conditions and must be interpreted in the context of other symptoms.
The treatment of urticaria is usually undertaken with anti-histamines, or topical / oral / intramuscular steroids.
Don Mehrabi MD, FAAD
Dermatologist, Certified by the American Board of Dermatology
Los Angeles, California
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