 [ Symptoms ] will one time pot use show up in a hair drug test from 5 months ago  it was in chocolate that i did not know was there it was about the size of a nickel [ Disease ] probably not if you are being absolutely truthful about your usage five months is a long time for a one time user hair analysis for traces of thc can be quite sensitive but there is really nothing you can do at this point if traces are detected it is detected