theThe Adept power Pain Relief iscan be found in the 4th Edition book Street Magic. According to my 2006 Printing on page 179, it costs me 1 point of adept powers and can heal some stun damage, demanding 5 minutes of care per healed box. The test is taken at the start and one heals any successes that you retain after fulfilling the difficulty of 2.
Healing stun damage generally would take a test on willpower every hour, and heal any successes.
There don't seem to be any spells that could heal stun damage.
Is the cost of 1 adept power point justified or too high, compared with the other powers?