Before coming, hydrate 2-3 days prior to your session. You may bring water with a cap/lid to your session. Hydration is key with all modalities.
After your session, preferably within 12 hours (the sooner the better), Dr. Sandra Rose Michael has recommended a 20–30-minute detox bath with 2 cups of salt, 2 cups of baking soda and 1 cup of 20 Mule Team Borax (found in the laundry cleaning isle at most stores, also available on Amazon). Again, you may do a 20–30-minute foot bath with half the quantity instead of bath, if a full bath is not possible.