I've been a smoker for over 30 years. Need to take drug test for new employment. I have 10 days to clean and even cover up from detox. I was planning on using monkey Whizz until I found out a physical is needed also. Then I thought oh I better do it detox and then a cover-up so I don't get busted with monkey Whizz. Can anyone recommend a for-sure 7-Day Detox and I for sure cleansing cover up? I've Been Told that those get discovered from containing a certain chemical? Should I go for the xx instead? Help!