You really want to keep that atomizer moist --there are many ideas out there--boiling, steaming, washing in warm water, etc. But I find the best think to do to clean an atomizer is what many do here and that is simply to blow it out
through the small hole that connects to the battery and stand it on end cartridge side down and let it drain overnight--if you are going to do any of the other methods--you need to make sure all the water is completley dry and reprime the atomizer with
e-liquid before you fire it up --Hope that helps--Sun