I believe they could test that the rash was not caused by food or contact with something but caused but a drug in my body. Reclast was the only thing that had been introduced new to me prior to the rash. They couldn’t test for what drug it was specifically but by default it had to be Reclast. Test result said PERIVASCULAR AND INTERSTITIAL DERMATITIS WITH EOSINOPHILS, MOST CONSISTENT WITH A HYPERSENSITIVITY REACTION SUCH AS TO A MEDICATION