dapsone (100–150 mg/day)
low-dose prednisone (10–20 mg/day)
high-dose prednisone (50–100 mg/day)
azathioprine 150 mg/day
Severe cases require systemic steroids, often with the addition of azathioprine. Dapsone is useful in mild cases, and occasionally in very mild cases (or for local recurrences), topical glucocorticoid therapy will suffice.