Pain in the right hand that worsens during activities like driving, writing, or using a computer may be due to repetitive strain, muscle or tendon inflammation, or conditions such as Tendinitis or Carpal Tunnel Syndrome. It can also happen from prolonged computer use, poor posture, or overuse of the wrist and arm muscles. Try to rest the hand, take frequent breaks while working, use proper wrist support, and do gentle stretching exercises. Applying a warm compress or mild pain-relief gel may help reduce discomfort. If the pain continues for a long time, becomes severe, or is associated with numbness or weakness, it is best to consult a doctor for proper examination and treatment.