It appears you should just change the coil and do more research next time. "i heard you could" does not convey that you have even done enough research to be using it, let alone cleaning it. So before you get an attitude with the people that are trying to help you, take a step back and realize all these people have been there and done that long before you. Bebop suggested another way that you can clean your coil that is also effective in extending the life span of the coil. I NEVER clean my coils unless I'm changing to a flavor that is completely opposite. After a few good puffs the old flavor is gone anyway. If you do choose to clean them, I suggest Bebop's method of burning off the residue rather than water due to the time it takes.