You don’t HAVE to keep going once you feel better, but maintenance care helps you feel better for longer. Think of it like going to the Dentist. Once you go to the Dentist do you have to keep going forever? No, but going for cleanings and maintenance for your teeth can help prevent cavities or catch them early enough that they can be treated more easily. When you come in for maintenance care at the Chiropractor, pinched nerves or other conditions can be caught and treated before they become a more serious/chronic problem.
-- Dr Christopher Ernst, D.C.