ABSTRACT
Cotton-Tipped Dipstick The dipstick technique involves dipping a cotton wool bud into a cup containing liquid nitrogen and firmly applying the bud to the lesion until a narrow halo of ice forms around the bud. This method is most effective with a cotton bud slightly smaller than the lesion to be treated and the cotton bud is home-made using loosely wrapped cotton wool around the wooden orange (or satay) stick. This holds more liquid nitrogen than prefabricated cotton buds.
