Apparatus and method for tracking the operation of a light beam, preferably a laser light beam, which operates to treat the skin of the patient. The apparatus includes plurality of markings in accordance with the light beam impinges on the locations to be treated. The apparatus including the plurality...http://www.google.com.au/patents/US6306128?utm_source=gb-gplus-sharePatent US6306128 - Cooling apparatus for cutaneous treatment employing a laser and method for operating same