Workers' comp does pay hospital and medical expenses that are necessary to diagnose and treat your injury. But it also provides disability payments while you are unable to work (typically, about two-thirds of your regular salary), and may pay for rehabilitation, retraining, and other benefits as well. For more information, see Nolo's article Types of Workers' Compensation Benefits.
Workers' Compensation Benefits FAQ
Are You Eligible for Workers' Compensation Benefits?
Types of Workers' Compensation Benefits
Is Your Injury or Illness Work-Related?
Workplace Injury: When You Can Sue Outside of Workers' Compensation
Filing a Workers Compensation Claim