... month a trace of hydrocodone showed up and the only thing i could thing of is i live with my father and we have a small pill bottle that we carry doses with us when we go to town so could the powder from his pills in bottle got on mine and cause a positive read on my drug screen i have had toxicologist say yes but they cant give me proof and doctor will not listen that i have not taken hydrocodone especially when i got my 6 oxycodone 30mg a day and levels were perfect for it as always