I haven't had a shoulder injury but my daughter just did. She was jumping off a porch for fun and one jump went bad. She hit shoulder first on the cold, solid ground.

She complained that it hurt to move her arm and had tingling in her fingers. I took her to an urgent care where they took three xrays; nothing broken or fractured. The doc just said have her take it easy for a few days. They didn't sling it either. He said she could use it but don't over do it. And to apply heat or ice and OTC pain meds.