Treatment for depressive disorders in children and adolescents often involves short-term psychotherapy, medication, or the combination, and targeted interventions involving the home or school environment. There remains, however, a pressing need for additional research on the effectiveness of psychosocial and pharmacological treatments for depression in youth. While data from adults indicate the need for maintenance treatment after episode recovery in order to prevent recurrences, the value of such treatment in children and adolescents has yet to be determined through research.
Psychotherapy:
Recent research shows that certain types of short-term psychotherapy, particularly cognitive-behavioral therapy (CBT), can help relieve depression in children and adolescents. CBT is based on the premise that people with depression have cognitive distortions in their views of themselves, the world, and the future. CBT, designed to be a time-limited therapy, focuses on changing these distortions. An NIMH-supported study that compared different types of psychotherapy for major depression in adolescents found that CBT led to remission in nearly 65 percent of cases, a higher rate than either supportive therapy or family therapy. CBT also resulted in a more rapid treatment response 30.
Another specific psychotherapy, interpersonal therapy (IPT), focuses on working through disturbed personal relationships that may contribute to depression. IPT has not been well investigated in youth with depression; however, one controlled study found that IPT led to greater improvement than clinical contact alone 31.

Continuing psychotherapy for several months after remission of symptoms may help patients and families consolidate the skills learned during the acute phase of depression, cope with the after-effects of the depression, effectively address environmental stressors, and understand how the young person's thoughts and behaviors could contribute to a relapse 1.
It is very important for parents to understand their child's depression and the treatments that may be prescribed. Physicians can help by talking with parents about their questions or concerns, reinforcing that depression in youth is not uncommon, and reassuring them that appropriate treatment with psychotherapy, medication, or the combination can lead to improved functioning at school, with peers, and at home with family. In addition, referring the youth and family to a mental health professional and to the information resources listed at the back of this publication can help to enhance recovery.

Source:
National Institute of Mental Health