A supervised oral challenge is the most accurate means of diagnosing food or drug allergies. These are only undertaken when allergy tests do not provide a confirmatory answer with regard to diagnosing an allergy or intolerance.
Severe allergic reactions are extremely rare but should be anticipated. Low risk challenges will be undertaken in the consulting rooms; higher risk challenges will be undertaken in the ward.
Please avoid taking anti-histamines and certain other medications for 48-72 hours before the test.