Elbow Injuries More Condition_symptoms How Do I Treat An Elbow Injury?

How do i treat an elbow injury? - elbow injuries more condition_symptoms

I have a sort of slight elbow injury. I seem to miss the nerve at the elbow. "I think the use of a rowing machine with poor technique. It did not take injured while working, but started after a few hours and spent the whole day.
What must I do to feel better? Rest? Some exercises? Ice? The heat? Can someone tell me more about what can this injury and perhaps something could be done to avoid that if you use the rowing machine again?