There is currently no cure for autism and no medicine that treats ASD itself. That said, various educational programs, therapies, and medicines are being used to treat behaviors that cause problems for children with autism. According to the Child Mind Institute, "Applied behavior analysis is a psychotherapeutic regimen that actively teaches and encourages desired social and communication behaviors, which other children learn intuitively. Developmentally based intervention uses subjects, words, and stimuli, to model a typical developmental progression for an atypical child. As every child is different, other appropriate therapies may include occupational, physical, and speech-language."
Source: Flickr user Lotus Carroll