A mental health expert will conduct a complete evaluation of the child's mental state and medical history. How to treat this disorder in children, you ask. Aside from therapy, a strong family support system is the best cure. Understanding and care, combined with help from a doctor and perhaps antidepressants, play a key role in rooting out this disorder. Eradicating or destroying the occurrence of a generalized anxiety disorder in children, ensures a healthy and productive state of mind, as an adult. Fear of Elevators Do you, or anybody around you for that matter, have the fear of elevators? A fear of getting inside an elevator may seem quite irrational, but then the word phobia itself means irrational fear of simple things.