Doctor's Notes on Erythema Nodosum
Erythema nodosum is an inflammatory skin condition (panniculitis) that causes tender, painful red or purple bumps or nodules that usually appear on the shins but may appear at other sites (ankles, thighs, buttocks, upper body, and face, for example). Signs and symptoms like raised nodules about 2-5 cm in diameter develop over several days. Joint pain, redness, and/or swelling may occur along with enlarged lymph nodes in the chest. However, some symptoms may develop before the nodules appear such as
Erythema nodosum is not considered a disease but is itself a symptom of other conditions like a hypersensitivity to a drug or other medical problems.
About 50% of people who develop erythema nodosum have no identified cause. However, the following conditions may commonly trigger erythema nodosum: infections (strep throat, TB, histoplasmosis, and others), drugs or medications (penicillin, sulfas, oral contraceptives, for example), pregnancy, cancer, and inflammatory conditions (sarcoid, ulcerative colitis and others).
What Are the Treatments for Erythema Nodosum?
The treatment options for erythema nodosum begin with identifying and treating any underlying condition or medicine that may cause the inflamed skin of erythema nodosum. Treatment directly for erythema nodosum may include the following:
- Anti-inflammatory drugs
In general, erythema nodosum is annoying and often painful but does not threaten internal organs; most people do well, especially if the underlying causes are treated successfully.
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