Erythema nodosum is characterized by tender, red bumps, usually found symmetrically on the shins. Up to 55 percent of cases have no clear identifiable cause. Sometimes, erythema nodosum is not a separate disease, but, rather, a sign of some other infection, or of a sensitivity to a drug.
The following are the most common symptoms of erythema nodosum. However, each individual may experience symptoms differently. Symptoms may include:
Young adults are particularly susceptible to erythema nodosum. The symptoms of erythema nodosum may resemble other skin conditions. Always consult your doctor for a diagnosis.
A biopsy (removal of tissue for examination under a microscope) of a bump can usually confirm the diagnosis along with comprehensive lab work. However, the exact cause cannot always be identified. Drug-induced erythema nodosum can usually be diagnosed by elimination of the drug causing the reaction. A throat swab may be done to check for strep infection.
Specific treatment for erythema nodosum will be determined by your doctor based on:
Treatment may include:
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