It's actually a doctor and associates (Nurse Practioners) who practice functional medicine. They prescribe for each patient individually based on your symptoms. The first three weeks are simple--oregano oil and L Lysine twice a day. This is my third week and I have to schedule blood work that is more in depth than the general blood test. Then I will do a follow up and another 6 weeks with a different set of herbs or oils. They may do telehealth, if you want to call them let me know. They are in Tampa, Florida