
I often see patients for allergies who desire allergy testing due to mysterious hive-like rash on the skin, and given many are fearful of needles, they opt for a blood test like RAST or immunoCAP to diagnose what they are allergic to. Some would even argue that skin prick testing would not be diagnostic.Though such blood tests have become remarkably accurate (skin prick is still the most accurate way to diagnose what a person is allergic to), there...