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.
will one time pot use show up in a hair drug test from 5 months ago? . it was in chocolate that i didn't know was there. it was about the size of a nickel.