No soap! Not unless you want to rinse the coil about 2,845 times or something.
Try a 30 minute boil in plain tap water, then rinse and let it air dry, or place it in front of a fan to let it dry overnight.
Make sure you prime your coil before using it the first time or after cleaning.
Coil Priming 101 | E-Cigarette Forum
Try a 30 minute boil in plain tap water, then rinse and let it air dry, or place it in front of a fan to let it dry overnight.
Make sure you prime your coil before using it the first time or after cleaning.
Coil Priming 101 | E-Cigarette Forum
I sincerely apologise!