The injury mechanism suggests injury to one of muscle of rotator cuff. There could be possibility of a partial tear. Please visit doctor for complete evaluation. If the injury is recent then please apply ice over reddened area and avoid heavy weight lifting. Also it is advised not to sleep on same side. Physiotherapy is advised once the swelling and pain is reduced.
Next Steps
Ice pack for 15 mins over the reddened area and visit nearby physiotherapist or orthopaedic for further treatment.
Health Tips
Avoid hot packs and painful movements.