Pain in your right hand that worsens with activities like driving, writing, or computer use is often due to repetitive strain, muscle or tendon inflammation (such as Tendinitis), or nerve compression like Carpal Tunnel Syndrome. It can also be related to poor posture or overuse of the wrist, elbow, or shoulder muscles, especially since the pain increases when you lift your arm. To manage this, give your hand and arm adequate rest, take frequent breaks during work, maintain proper ergonomics (correct chair height, wrist support), and do gentle stretching exercises. Applying a warm compress or using a mild pain-relief gel can help reduce discomfort. If needed, a doctor may advise pain-relief medicines or physiotherapy. If the pain persists, worsens, or is associated with numbness, tingling, or weakness, consult a doctor for proper evaluation and possible tests to confirm the cause.