What's the doctor's recommendation to identify a food allergy?

Food allergies: Food allergies typically trigger skin and GI symptoms and can cause anaphylaxis (severe allergic reaction). Symptoms of food allergy occur within minutes to hours of ingestion (sometimes on skin contact) with only small amounts of the allergenic food. Food allergy testing is not as reliable as we desire, but it is good at ruling out food allergy if test negative. 6 foods cause 90% of reactions!

Food allergy testing: In many cases the medical history will suggest the food causing the problem. This can often be confirmed with allergy testing (skin tests and/or blood tests). Sometimes the allergist will do an in-office food challenge.