Be sure to arrive for your appointment very well hydrated. Drink a gallon of water each day for three days prior to the appointment. You should be drinking close to this amount every day for proper hydration, but most people are not consistently achieving this goal. If you are not well hydrated for your colonic, your colon will absorb the infusion of water instead of using it to release fecal matter and toxins. If your colon is absorbing the water instead of releasing it, you will likely experience additional cramping, you may become nauseous, and you will not properly empty the contents of your colon. The colonic will eventually hydrate you, but you just had a very expensive drink of water instead of a beneficial colon cleansing. To get the most benefit from each colonic make sure you arrive for your appointments very well hydrated.