The pancreatic treatment from the homeopath is not enzymes, but I don't know much else. its supposed to stimulate his own pancrease... i think enzymes would have the opposite effect. I'll check into it and let you know.
re the neem. right now we just use the pure oil all over his skin and hair. You can get neem leaf capsules and can make tea as well. I also ordered some neem soap and shampoo. i really like the stuff. as far as parasites go, you can also add drops of essential oil to the bath. we use 10-20 drops of tea tree oil, some lavender, some oregano and some peppermint. it kills skin parasites, fungus, bacteria ect. you can also add the essential oils to a base oil like grapeseed oil for the same effect.
re internal parasites, still not sure what to do about that... he's so young, i don't want to do anything that might hurt him.