In the fast colour corrector you can try to wind down the cyan/red but it will affect every other similar colour.
Go to Effects > Color Correction and apply the Change Color effect to your clip. Use the eyedropper to select the color, then reduce the saturation and increase the lightness to see if you can minimize the purple flare.
You may need to use the mattes for the effect to restrict the change to certain areas of your image.
Use the Three Way-Color Corrector then expand the secondary color correction, click the eye dropper tool and select the halo's. Next is to check "show mask" and expand "Hue, Saturation, and Luma". Tweak this settings by dragging the sliders. Do this while viewing the mask. The mask should cover all the halo as much as possible. After that uncheck the "show mask" and make the saturation to 0. You would have to do this for all the shots. And of course the settings won't be the same.