I think it is a great idea. When I did a Lugols enema (general purposes) I used about 12 drops in 3 cups of water. The enema even caused my liver to drop a load. It turned into a surprise liver flush. Lots of mucus came out also. The nice thing about a Lugol's enema is that it knocks the candida dead in just a few minutes and then the stuff is evacuated from the body so you don't have to deal with lots of die off reactions.
I did swallow a couple of teaspoons of Epsom Salt a couple of hours before doing the enema which helped relax the bile ducts and make sure I wasn't constipated.