A patient soaks in Naftalan healing oil at a petroleum spa in the town of Naftalan, some 350 km (217 miles) west of Baku, October 12, 2007. Naftalan, a rare type of oil, is used in Azerbaijan to treat arthritis, skin diseases and various other conditions. The town of Naftalan, where the oil originates, runs a special treatment centre that was at the height of its popularity during Soviet times. Picture taken October 12, 2007. REUTERS/David Mdzinarishvili (AZERBAIJAN)