Medical uses tinea captis erythrasma coral red or pink fluorescence is seen t. Versicolor shows golden yellow fluorescence or may appear lighter than adjacent skinpseudomonas infections pyoverdin of fluorescin plays a crucial role in the aqua green or white green or rarely yellow green pigmentary alterations these are top-rated explained by the optical characteristics of the epidermiscabies use is in detection burrows drug ingestion tetracyclines cause a yellow fluorescence abnormalities of porphyrin metabolism elucidation of contact dermatitis to help identify the phototoxicity of cosmetics functioning as a routine diagnostic tool dermatoses seen poorly in visible lighttechnique the individual receiving carehould be assured of the usefulness and non, Invasive nature of the examination. Since ointments, Exudates, Cosmetics and soap may flouresce. The skin should be well cleansed before examination. The lamp should be on for atleast a inute to attain optimum intensity. This duration also helps the investigator for darkness adaptation. The light source should be four to five inches from the lesion. Operating instructions connect the mains connect to the 3, Pin socket. Swicth on the mains button to the on position. Then push the choke button once for instant glow. The on, Off swicth is selected by switching to the upward position for ultra violet and downward for the white tube.