11 Foods That Soothe a Sore Throat Many fruits, vegetables, and herbs are capable of saving the day with their antioxidant-rich powers and can sometimes help you avoid that trip to the doctor. iStock/Thinkstock
RAST stands for radioallergosorbent test. This is a blood test used to diagnose allergies. Your blood is drawn and a lab will analyze your blood sample for the level of antibodies that cause allergies.
If you suspect you have a dairy allergy, avoid all foods that contain dairy, and please see a board certified allergist or immunologist as soon as possible. A skin prick test or RAST can confirm the allergy. (Do not use antihistamines for 7-10 days prior to the test.).