There is no cure for autism spectrum disorder (ASD). Therapies and behavioral interventions are designed to remedy specific symptoms and can bring about substantial improvement. The ideal treatment plan coordinates therapies and interventions that meet the specific needs of individual children. Most health care professionals agree that the earlier the intervention, the better.
Educational/behavioral interventions: Therapists use highly structured and intensive skill-oriented training sessions to help children develop social and language skills, such as Applied Behavioral Analysis. Family counseling for the parents and siblings of children with ASD often helps families cope with the challenges of living with a child with ASD.
Medications: Doctors may prescribe medications for treatment of specific ASD-related symptoms, such as anxiety, depression, or obsessive-compulsive disorder. Antipsychotic medications are used to treat severe behavioral problems. Seizures can be treated with one or more anticonvulsant drugs. Medications used for attention deficit disorder can help decrease impulsivity and hyperactivity.
Other therapies: There are a number of controversial therapies or interventions available for people with ASD, but few, if any, are supported by scientific studies. Parents should use caution before adopting any unproven treatments. Although dietary interventions have been helpful in some children, parents should follow their child's nutritional status carefully.
This answer is bases on source informatin from the National Institute of Neurological Disorders and Stroke.