I'd have to say that out of all the treatments, the shirodhara had the most impact. Shirodhara is an ayurvedic method of relaxation. The constant application (pouring) of oil or water between the eyes is said to increase blood flow and circulation to the brain. I actually found it hard to concentrate on anything but the pouring, which meant a clear mind.
Shirodhara is used to treat a range of things including depression, anxiety, stress, migraines and insomnia.