Becca,
Don't have experience with this, BUT, I have that a bath made up of 1 x cup tepid (luke warm water) and 1 x teaspoon of honey added and disolved in it may help a sick frog. The frog should sit in this bath for 20 minutes at a time. I can't see the harm in trying this as honey is in anycase knowm for it's healing abilities. My advice till some of the more clever peeps come along.