What you should know:
All wounds to the hand require medical advice and usually surgical exploration due to the major risk of injury to tissue such as nerves, tendons or blood vessels.
What you should do:
Rinse the wound in physiological saline only.
Do not use coloured antiseptics
Apply a moderate pressure dressing to the wound and elevate the limb if bleeding.
Ensure you keep an empty stomach (do not eat or drink)
Refrain from smoking
Consult your GP or a hand surgeon.
What you should not do:
Apply a tourniquet
Neglect even a minor hand wound