Detailed Answer
Stop immediately. Pain is a warning sign of repetitive strain injury (RSI) or carpal tunnel syndrome. Rest for 24-48 hours. Apply ice if swollen. Then check: 1) Wrist posture – must be straight, not bent up. 2) Keyboard tilt – should be negative (front lower) or flat. 3) Use a padded wrist rest for breaks only, not while typing. 4) Switch to a low-force keyboard (Cherry MX Red or Topre). 5) Take a 5-minute break every 30 minutes. 6) Do stretching exercises. If pain persists, see a doctor. Do not 'power through' – that can cause permanent damage requiring surgery.