A mudra is a symbolic or ritual gesture in Hinduism and Buddhism.While some mudras involve the entire body, most are performed with the hands and fingers. A mudra is a spiritual gesture and an energetic seal of authenticity employed in the iconography and spiritual practice of Indian religions.
Yoga Mudra is another non-medical mode to treatment which helps without harming. Mudras are various postures of fingers and thumbs. By practicing mudras and mudra yoga, different diseases are treated by holding and retaining the fingers and thumbs in different ways.

HOW TO USE MUDRA HAND OR MUDRAS YOGA IN YOUR HANDS

To use a mudra, keep it for at least a couple of minutes. It is usually more effective to do them a while longer, like 15 minutes or so. You might spread that time over the day, but you could also make it part of meditation. To perform the finger mudras, hold the finger positions with both hands, at the same time. This will have a more powerful effect than doing a mudra with just one hand.