As the parent of a child with ASD or related developmental delays, the best thing you can do is to start treatment right away. Seek help as soon as you suspect something's wrong. Don't wait to see if your child will catch up later or outgrow the problem. The earlier children with autism spectrum disorder get help, the greater their chance of treatment success. Early intervention is the most effective way to speed up your child's development and reduce the symptoms of autism over the lifespan. Fo