The patient is a 55-year-old woman who was diagnosed with pemphigus vulgaris (PV) 5 years earlier. She was under treatment with 80 mg/day of prednisone along with 2 g/day of mycophenolate mofetil . She has not come to the clinic for 3 years, and in her last visit, she was under treatment with 12.5 mg/day of prednisone and 50 mg/day of azathioprine .