Scratch tests are very accurate, whereas the blood tests are not. Most allergist prefer doing scratch tests for this reason. Did they test you for environmental allergies too--Dust, pollens, etc? Allergies and adrenal fatigue are a vicious cycle. Allergies really deplete the adrenals, and lack of adrenal hormones can increase allergies. Therefore, if you have adrenal fatigue, you will often become allergic to the foods you eat the most. Stop eating the foods you tested positive for immediately, you should notice some improvement. And if you can, take some adrenal extracts, they have been a godsend for me.