Severs disease or calcaneal apophysitis is a common problem causing pain in the heel of kids; it is an overuse type injury to the growth plate at the back of the heel bone. It is a self limiting problem that always comes right eventually when the growth in the heel bone stops. Several treatments have been advocated for it treatment. One of these is a dietary supplement called Oscon which consists of selenium and vitamin E. It is only supported by the use of testimonials and no clinical study has been done on it. It is not clear if it is worth trying or not as most children do get the minimum dietary requirements for Vitamin E and Selenium from their normal daily intake.