One healing technique that works really well is the combination of sound and touch. All you have to do is hum while your hands are touching yourself or someone else. That’s right, just hum while you touch.
To get a direct sense of what the effect is, hold your palms apart and facing as described in the Healing Hands article, but without rubbing them first. Now hum.
In addition to the vibration in your body, you will feel a tingling in your hands and perhaps even the soft pressure sensation between them.
Whenever you have aches or pains or places that need healing, you can put your hands or fingers on them and hum your way to health. Actually, it will help to relieve tension and speed up your body’s natural healing process even faster than touch alone.
You can experiment with humming high notes or low notes, or even your favorite tunes. I’ve found that the effect is stronger if you keep your attention on where your hands are touching while you hum. The effect is also stronger when you hum with your mouth closed because this produces a stronger vibration within your body, which transfers more energy to your hands.
From: Instant Healing by Serge Kahili King