There are a number of factors in determining the appropriateness of treatment.
1. Is this emotional distress disrupting daily functioning, threatening to overwhelm the child or interfere with age-appropriate emotional development?
For example, parental divorce is an emotionally upsetting experience that children react to in a variety of ways. If a child's reaction lasts longer than a month and is prevalent in other settings besides home, this indicates that normal functioning has become disrupted.