Colour Correcting Skin following the Line in Hue/Saturation Curves gives me bizarre results ??

Hi Guys,

So I am trying to colour correct skin of the subject in a video and when I go to Vectorscope this what it shows so I am trying to align the white part in the circle to the line in the cirecle. And to do so I go to the video Inspector than Hue and Saturation Curves and in that I go to Hue vs Hue and then elect the dropper then select an area o the skin it gives me yellow and red colour curves to play with and when I make the adjustment and align it to the line in the circle it gives me a bizarre skin tone on the subject.

What do I do ? If I follow the line and make the adjustments it misgiving me a bizarre looking skin.

Please check the attached screenshots.