In my over 30 years of pot smoking I can honestly say nothing ever worked for me but time. However, you have 2 options, 1) get some 'Clean" urine from a friend who does not smoke pot or do other drugs. 2)get your Dr to give you a prescription for Marinol. I was in a Methadone Detox program where we had to drop a UA randomly. Luckily, my Dr gave me a prescription form Marinol to control my nausea and vomiting from Diabetc Neuropathic Gastroparesis. One thing that might help you with your Dr, as my Dr told me Marinol is a schedule III drug and your Dr can call it in to the pharmacy. Plus a Dr can prescribe any LEGAL drug if he thinks it will help the patient. So don't let a Dr tell you he can't prescribe Marinol its just not true (unless there is no medical reason for you to have it), they can prescribe it if they have a legitimate reson for doing so. If you get clean urine tell you dad you have to take a dump and then make sure you have the clean urine in a plastic pill bottle that locks (so it won't leak) then while in the bathroom run the bottle under warm water to raise the temp to body temp. Otherwise your dad might suspect something. Peace and good luck. :smokin: