There is a company that sells Dr Christopher's formulas (or based on his original formulas) and they have a product specifically for bedwetting. The purpose is to help strengthen the entire urethral canal, kidneys, bladder, etc. It contains the following herbs: Parsley root, Juniper berries, Marshmallow root, White pond lily, Gravel root, Uva ursi, Lobelia, Ginger root and Black Cohosh root in a base of pure vegetable glycerine.
Do you have anything similar to this MH? I realize there may be multiple reasons for bedwetting but strengthening the urethral canal and cleaning up the diet sound like good places to start.