Will azo be the reason i have a positive drug test?

Don't think so: What was your test positive for? Azo is both a commonly used name for a medication used to reduce pain of urinary tract infection, and which also can turn urine orange and stain things, and the name of a company that makes several products. Methadone programs are required to do confirmatory tests for positive screens, and you should ask for that, if you haven't used other drugs.