Depends on severity and circumstance. For most people once or twice a month is a good place to start. It is important to not become dependent on treatments and to use the time between treatments to practice lifestyle and diet techniques to enhance our healing. Treatments are actually a crutch. They help us shift when we feel stagnant, relieve pressure after trips or big life events, break ups, deaths, and traumas.
It is unique to each individual and can be discussed with the practitioners one on one.