Have the child tested, for goodness sake. Its a simple blood draw these days...no more pricking 100 drops on a childs back or arm. Food allergies will not go away with allergy meds, only 'cure' is cutting that food out completely.
Also, just an FYI, different over the counter allergy meds contain different allergy fighting ingredients...Clairitin may work great for Tommy, but does nothing for Mary. Zyrtec works great for Mary, but does nothing for Bobby..he needs Benedryl. Also, in order for over the counter allergy meds to work effectively on environmental/outdoor allergies, you must steadily build up a level in their system. We start my 9 y/o on a daily 5ml dose of Zyrtec a month before spring. That way when the pollen hits, he is good to go. View Thread