The number of sessions required depends on the number of items causing a reaction. For example, a patient who reacts to five families of substances (dairy, wheat, corn, animal dander and pollen) will require more treatments than someone who reacts to fewer families of substances. A good rule of thumb is between 1 to 3 sessions to relieve the symptoms or resolve a condition within one substance family. However, we usually need to treat some preliminary substances before we can begin treating the primary offending allergen family. For example, all foods break down into vitamins, minerals, and sugars. If there is a sensitivity to any of those, they must be treated before any food.