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.
Work with Your Veterinarian. It is best to work with your veterinarian when treating your dog's skin allergies. A qualified veterinarian can run skin or blood tests to help determine the cause of your dog's skin allergies.There are two types of blood antigen tests: RAST or radioallergosorbent and ELISA or enzyme-linked immunosorbent assay. qualified veterinarian can run skin or blood tests to help determine the cause of your dog's skin allergies. There are two types of blood antigen tests: RAST or radioallergosorbent and ELISA or enzyme-linked immunosorbent assay.