Answer to Medical Challenge

The answer to yesterday's medical challenge is....drumroll.....

#4 -  Sugar

Plain granulated sugar can be applied to the mucosa of the prolapsed structure (such as the ileum in this case) to promote the osmotic shift of fluid out of the edematous tissue.  In this case, within 2 minutes, the edema had diminished sufficiently to allow spontaneous reduction of the prolapse.

Thanks to all who made