I'm having a problem when I go tanning?

I know tanning is horrible for you and I try not to go to the tanning bed that much, but I'm finding when I do go that there are always 2 circles on my back (on my shoulder blades) and rear end. I've tried laying a different way, applying more lotion to those areas etc, but nothing seems to work. It's starting to look silly cause I've gotten a pretty good tan but those spots are really white! Any help would be greatly appreciated!
I'm having a problem when I go tanning?
lay on your stomach for half the session!!!
I'm having a problem when I go tanning?
try tanning in the sun instead
Reply:go to the beach, then you wont have to spend money. either way your exposing your skin anyway
Reply:I agree with trying to lay on your stomach
Reply:I *think* its because of sweat build up. take a small cloth in there with you and whipe it off every couple minutes.
Reply:Unfortunately you'll have to lay on your belly. It's the bones that shadow those areas, so the belly is the best place to lay. Just not that comfy.
Reply:I'm afraid there is nothing remotely healthy about tanning and it is my hope that you will simply stop doing it. You'll ruin your skin.
Reply:If you're lying on your back, it's because the blood is being cut off because that's where the pressure is. Try laying on your stomach for half the time you're in there.