My right shoulder blade and arm hurt hands get tingles assleep. My left pinky started catching like stuck have to force open. Ring worm like rash tumm?

Various issues. Pain in the shoulder and hand of the same side is most likely due to pinching or impingement of a nerve root exiting the spine at the neck and caused by a bulging disc or vertebral spur. Hand tingling is often due to carpal tunnel syndrome caused by thickened ligaments in the wrist. A locking of a finger joint is usually due to joint damage. Rash is unrelated. A neurologist could dIagnose for you.