Sit up straight in front of a table.
Place your affected hand on the table, resting it along the little finger side of your hand.
Bring the thumb tip and index finger tip together, keeping the biggest possible "O" or "D" shape space between them.
Gently squeeze the tips together keeping both the end and middle joints of the thumb bent and raised.
If you are unable to keep the middle joint of your thumb raised, you can support it using the index finger of your other hand.
Keep your wrist straight throughout the exercise.
