Suggest Treatment For Pain Above Navel In 8 Year Old Child

Hello doctor my 8 year old daughter has been complaining of an acute pain above belly button for last one week. first on an off now she says its continuous. While the visit to pediatrician resulted in a 5 days course of Zansol ,it does not seem to subside. Pain is exactly in the same place for last 3 days and no symptoms of diarhoea or vomiting etc.. pls advice