Jane takes a sample image of a model to demonstrate dodge and burn effects on skin tones, as opposed to blurring, which makes your image lose texture. With dodge, Jane recommends a low exposure of about 5% and with "Protect Tones" and Shape Dynamics turned off. Your brush size should be appropriate to the size of the area being edited, and the effects should be applied gradually.

Tip for switching to burn: Hold option key while using the dodge tool.

When dodging and burning, there may be discoloration, but you can apply the skin colored tint back to the image by using the eyedropper and a brush in "color" mode.

You'll see great examples of before & after shots!