At this point I don't know if this is going to cure him, but at least he is acting ok. I read the link that someone told me here (see my question from a week ago) plus the info from the book I mentioned. They suggest small meals.
In the morning a soft boiled organic egg, low fat cottage cheese in that I mix organic uncooked oats. I bought milkthistle and senior blend (he is almost 11) tincture and put that in the food morning and evenings. Plus some powdered esterC vitamins.
At night pumpkin from a can (I had read this before), I sprinkle some coleslaw in it. To this I add salmon (rinsed with water)from a can.
During the day as a treat I give him some pieces of organic wheat pitta bread.
In case he start throwing up again, I bought homeopatic tinctures, I would start using that then.