Temperature distribution (patient’s right cheek) at 2 min after treatment conclusion. The distribution demonstrates ±0.1°C differences. The areas are not distributed evenly which is the result of imprecise performance of the laser procedure by equipment operator. Figure shows the case of successive overlapping doses of radiation or the formation of untreated spaces. Heat propagation in skin can be modeled with diffusion approximation. With increasing depth and area of thermal injury clinical response increases. Overheating due to an excess number of passes or pulse overlapping can result in scarring.