SUSPECT ALLERGY TO OATS BUT NOT WHEAT? ANY ADVICE PLEASE

[chloesmumtoo]

MY DD HAS MANY ALLERGIES, SEVERLEY TO PEANUTS AND OTHERS TO PEPPERS,KIWI,TOMATOES,CARROTS,MAIZE,BANANA,RUNNERBEANS. SHE HAS HAD MAINLY SKIN PRICK TESTS IN THE PAST AND ONE BLOOD TEST WHICH REVEALED SHE WAS OK WITH WHEAT. FOR A WHILE NOW I HAVE BELIEVED SHE IS REACTING TO PORRIDGE OATS? VERY DIFFICULT TO BE SURE BUT I FEEL POSITIVE ITS EVERYTIME SHE EATS OATS. HAVE BEEN AVOIDING THEM LATELY BUT GAVE THEM ACCIDENTLY IN A BISCUIT YESTERDAY AND SHE SUFFERED FOR HOURS. ITCHING INTENSLY AND FEW TINY HIVES AND COMPLAINED OF ACHING. WILL DEFINATELY GET OATS TESTED BUT EVERYTHING SEEMS TO SAY ITS UNLIKELY TO BE AN ALLERGY TO OATS. ANY ADVICE. MAY BE CROSS CONTAMINATION TO BARLEY I HAVE READ ? ANY ADVICE ON WHAT TO GET MY ALLERGY DR TO TEST FOR?