Nurse gave me a shot posterior to my deltoid. Now my pinky is numb. How can I ensure that my ulnar nerve recuperates?
You'll likely get better so long as you protect the nerve from further injury (avoid bending the elbow too much or resting your elbow on a surface), but the recovery may take months since nerves regrow very slowly.
A test called an EMG can help to decide the likely prognosis.
NUMBNESS OR TINGLING