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..
When muscles are sore, it is because of a buildup of toxins, mostly lactic acid. The blood cannot get to the damaged tissue to deliver oxygen and carry out the stagnant waste. The best thing you can do is rub the muscles, lightly. Use long, slow strokes from your feet to your hip and back down.