Like chickenpox, the "disease" poses little threat to the healthy child. There is, however, insufficient clinical evidence on which to base conclusions about the condition's long-term effects, as parents rarely have their children diagnosed until they are well into their 30s and still living at home. By that time, it is too far advanced to treat effectively.
(Special note: Pokemon commercials broadcast on Japanese television have been known to cause seizures in children exhibiting symptoms of minimania.)