Definition of infirmary for English Language Learners. : a place where sick people stay and are cared for in a school, prison, summer camp, etc.
Torgan says delayed onset muscle soreness also has a repeated bouts effect. If someone does an activity, they will be inoculated for a few weeks to a few months -- the next time they do the activity, there will be less muscle tissue damage, less soreness, and a faster strength recovery..
Heating pads ease muscle soreness by applying low heat, directly to the source of pain. Leave on for about 20 minutes, and be sure to place a towel between the pad and skin to avoid potential burns. If soreness persists after 7 days or sudden, severe muscle pain is felt, consult a doctor.