HI I HAD A DRUG TEST FOR A JOB TODAY

HI I HAD A DRUG TEST FOR A JOB TODAY AND TESTED POSITIVE FOR OPIATES AND THATS CAUSE IM ON TYLENOL 3 FOR AN ANKLE SPRAIN AND I TESTED POSITIVE FOR COCAINE AND I DONT USE. I HAVE A FEW DIFFERENT MEDS I TAKE AND AMXICILLIAN IS FOR A SINUS INFECTION. WHAT CAN CAUSE A POSITIVE TEST FOR COCAINE PLEASE HELP I NEED AN ANSWER FOR MY JOB AS TO WHY I TESTED POSITIVE FOR COCAINE.