Although there is no permanent cure for autism, there are many steps that parents can take for treating specific symptoms found in children on the spectrum. One of these things is using herbs that reduce anxiety, control hyperactivity, promote calmness and improve concentration.There are many herbal remedies that have been used by parents successfully with children on the spectrum. However, most of these herbs have not been scientifically tested and may also have side-effects. It is, therefore, advisable to consult a qualified herbal practitioner and your child's regular physician before actually using these herbs.