Dr. oswald believes that treatment should be in the hands of the individual being treated. she follows the approach to therapy.

I believe the answer is humanistic approach.
The humanistic approach is aimed to help the patient gain some sense of meaning in their life. This approach believes that by making individuals appreciate themselves, their thought process in the handlong problem wouldn't cause any damage to their psych and they tend to be more effective in overall aspects of their life.

Dr. Oswald follows the Client Centered approach, also known as Person-centered , non-directive, or Rogerian therapy. The Person centered approach allows the patient to choose the treatment plan using the Doctor as a support. This give the patient the feeling of being in control of their outcome.