Try dragging your image into PS and then select from the top line of FILE, EDIT, IMAGE etc, the button that says WINDOW. Select Histogram from the drop down menu. Now that you can see your histogram, select Image, Adjustments, Levels. In your levels box at the top, you will see RGB in a drop down box. Click on this box and select red. you will see your other colours there too. Now grab the black slider(you should see 3, from left is black, middle is grey and right is white) and move the slider to the foot of the histogram. You should see the red in your image fade off a bit. Click ok. Now go to Images, Adjustments, Curves and select. Same as in levels, you can select your different colours. Select the blue channel and grab it in the middle of the curves line and gently pull it around while watching your histogram. Try to make one mountain out of the histogram with as much as possible smooth slopes each side. That should drain a bit more red out of the image. Now you have your colours more or less aligned. You will suffer clipping in the image due to the nature of the problem, you cant help it. Now go to Images, Adjustments, Hue/Saturation and drag the Saturation slider back to the left a bit to suit your taste, probably try a value of -25.
Hope that helps a bit!!!
PS:I have posted your image with the steps outlined above so you get some idea. This is the only reason I adjusted the image and reposted it. Sorry if this has offended anyone!