Umm?...

Adam, I don't know, but I'd suggest you go back to the surgeon or back to the hospital. I don't think it's good for digestive juices to be on the skin or leaking possibly back into your abdomen (if that can happen.

Hope it's only short-lived.
q

Usually I get yellowish or greenish foam if I haven't eaten much recently. It's usually just bile esp right after your op. It's nothing to worry about and everything will soon thicken up again once you start eating regularly.

As for your skin, if it's still looking good and doesn't hurt, don't worry about it. On the other hand, if it's red and sore, then for a quick fix, get some Mylanta or Maalox. Don't shake the bottle, skim the watery bit off the top then dab the thicker mixture onto your skin and let it dry before putting a new wafer on. It will help soothe and heal raw skin (don't worry, the wafer will still stick).