As a teacher, it is my natural instinct to go into research mode and after my son's diagnosis, that is exactly what I did.
Overall I have found that there are hundreds of treatments for ASD, all with stories about how their child was miraculously "cured" of ASD by this treatment, (I hate that word "cured" as ASD is not a disease!). I used to read all about a treatment and go to bed dreaming that I found the right one for my son; that he took the pill or did the therapy and woke up the next day.....fully communicating.
Sounds amazing, right?
his toxin levels were practically zero, so no detoxification needed for my son.
I also read about Animal therapy, but my son is scared of any animal coming at him, so we did not pursue it. Getting him a bunny rabbit to stroke was the closest we got. He refused to hold her, and would only stroke her if I held her very still on my lap. Even then, it was done with trepidation. He does love his rabbit, but only because she is in a cage and so can't come near him.
More recently, there has been the broccoli sprout treatment (sulforaphane) which has said to improve irritability, lethargy, hyperactivity, awareness, communication, motivation and mannerisms.. Now my son likes broccoli because he likes eating the "little trees" as he calls them, but he won't eat them everyday...who would? I bought him the sulforaphane tablets but after the B6/magnesium and a hilarious afternoon trying to teach him to swallow a tablet (in which he kept pushing the tablet forward with his tongue), I have put it on hold for the time being.
But, I never lose hope that one day I will find that miraculous elixir...
So this is as far as I have trekked through the treatment jungle. There are a lot more treatments out there, some I am willing to try like scuba diving (a form of hyperbaric oxygen therapy) and aroma therapy, and others I am not, like risperidone (antipsychotic drugs) and secretin (used for digestive problems).
There is a lot out there in the wilderness, and my advice is to continue to walk the safe path of recognized therapies, because time has shown that they will yield the best results.