A very good specialist in retouching :
http://parengon.free.fr/pages/Ex07_Flouter.html
But with PhotoFiltre 7, to avoid halo around the clear subject,
it's possible to replace the clone stamp step by a selection expanded (more of 32 pixels),
which content is "Paste(d) in/Adjust size" in the original selection (expanded of 3 pixels), before to apply the gaussian blur.
And for the step to refine the hairs edges, you can try a duplicated layer of the clipped subject and turn the layer in Minimum blending mode,
or paint the floating hairs with clone stamp in Pattern mode on a Minimum blank transparent layer.
