How to fix face of a girl by using photoshop

1. Use liquidify to fix the shape of the face
2. Use Alt + click to select a color and paint tool to cover some unwanted colors. Use dodge tool or burn tool to change the exposure of the touched areas.
3. Use the technique in this video: https://www.youtube.com/watch?v=Qw5dUVTmzro. To summarize: separate low frequency and high frequency.
To get low frequency: copy the layer and use Gaussian blur
To get high frequency: copy the layer | Image | Apply Image | select the low frequency layer, blending: substract, scale 2, offset 128. Then change the blending mode to Linear Light for the high frequency layer.
Done.