Two methods:

1. Through heating the heating wire, clear the carbon deposit.
This is the most simple and most easy-to-use method.
First, clear up the rest of liquid,  let e-cig atomizer keep dry.
Then connect the e cigarette battery, press the battery button, let the atomizer electricity.
Keep the power on, through the heating evaporate the residue of fiber rope.
If your e health cigarette atomizer is clearomizer, you can see the heating wire became to red in the process of power on. 
After a few times electricity, fiber rope by black or yellow gradually become white, restored to a new state.

2. Clean by alcohol
Prepare a loaded container of alcohol, after removal of excess liquid of  atomizer, put into container, use tweezers grip the atomizer repeated washing in alcohol. 
After a few minutes the  ego cigarette atomizer can be used again.