You can do skin prick tests or shell out the dough for expensive food sensitivity lab results (that may not even tell you anything definitive), but the gold standard remains the food challenge: strict avoidance of the suspected food until symptoms subside followed by an oral challenge. (healthylivinghowto.com)
I had skin prick tests which came up negative but while having the test went into anaphylaxis and was given an epipen. (surefoodsliving.com)
At the beginning of the trial, researchers gave peanut allergy skin prick tests to all the enrolled infants. (slate.com)