How do complementary doctors treat depression?

Meditation and ... Complementary and alternative medicine doctors (or non-doctors) treat depression with multiple modalities including: meditation, diet, tai-chi, exercise, all of which show some benefit. Others use treatments with no demonstrated value such as blood irradiation, colonic cleansing . . .
Meds, TMS, CBTs. I'm not sure what u mean "complementary doctors", but I use every means available and fda approved incl. : pharmacotherapy, tms( transcranial magnetic stimulation and cbt (cognitive behavioral therapy.