| Prescription drugs and Hair drug screenings I recently has a tumor removed from my nasopharynx my doctor prescribed prescribed and i was given prescribed with prescribed to numb nose to allow the fiberoptic instrument to pass thru my nasal passage with no pain. I recently had a hair drug test completed and i tested positive for cocaine when i have not used the drug. It shows my levels were 2644 pg/mg. Could Vicodine or Pontocaine cause the levels of the cocaine to be in my hair? |