A 52-year-old man presented with pain in his right index finger. No history of trauma was reported. His finger nails were dystrophic and the X-ray of the finger showed typical osteolysis of the distal phalanx of his right index finger. This was caused by acrodermatitis continua of Hallopeau. We administered naproxen, methotrexate and folic acid as a systemic anti-inflammatory treatment.