Associated w drugs esp BCPs, sarcoid, tuberculosis, ulcerative colitis, regional enteritis, lymphogranuloma venereum, chancroid, cat scratch fever, histoplasmosis, coccidioidomycosis, drug eruptions, diphtheria, strep infections, rheumatic fever, SLE

Si:Very tender nodules, usually on anterior shin, without scarring

Rx:Bed rest, elevation; NSAIDs; colchicine; and, if severe, oral steroids