This is an ultraviolet light which, when used in a darkened room, will highlight certain fungal infections on the skin or hair. The fungus shows up as a fluorescent object under the lamp. The procedure is painless.
A small scraping of material from the skin is taken, using a small scalpel blade. This is then looked at under the microscope, where fungi and parasites can be readily identified.
A local anaesthetic is given to put a small area of skin to sleep and a 3-4 millimetre plug of skin is removed with a special instrument or needle. The specimen is then sent to the laboratory for further examination and identification. This is rarely required in children with common skin problems.