How is erythema nodosum diagnosed?
The doctor would first do a physical exam of the rash. However, a biopsy – a procedure in which a small section of affected skin is taken to examine more thoroughly – is usually required to confirm a diagnosis of erythema nodosum.
How is erythema nodosum treated?
Erythema nodosum is initially managed by identifying and treating any underlying condition, along with the skin lesions.