How do i clean my system after using cocaine?

Best not use it: Drink enough fluids rest and look for groups specially relapse prevention.

Drug screening?: Are you asking how long before a drug screen is negative? If so, there is nothing i know of to hasten that. Most Cocaine is gone in a matter of a few hours, but the screen can stay positive for a while. If you are talking about how to clean up your act, i.e. Quit using cocaine, that needs both a strong commitment from you and guidance for an addiction specialist.