 [ Symptoms ] tinea versicolor i have had this condition my whole life i am a 35 year old male usually a two week prescription of nizoril tablets generic version does the job this time it did not work and the condition seems to have gotten worse all over back and spreading to front of arms should i return to the dermatologist what will they do or should i call for another two week refill what about selsun blue does that work [ Disease ] maybe but it depends on which fingers are involved the nerves to the hand arm and fingers does originate in the neck