First off there really is no way to completely remove the noise but you can reduce it. To be honest I have a dedicated photo editing program I'd use for this but you can use Xara and definitely make improvements. Start by adjusting the brightness of the entire photo. You can use the blur slider to slightly blur the entire photo but be careful to do this only slightly Now create a region around the face by using the shape tool to create a detailed black shape over the face and make sure to cut out the eyes and mouth. cut this shape to the clipboard (ctrl + X) then select the region painter and just select the photo with it and nothing else. use the keyboard shortcut ctrl+shift+v to paste in place and the shape you created and cut to the clipboard comes back in as a region. Now you can smooth out just her face and further remove the noise from her face.