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..
Do easy stretches. When you're feeling sore and stiff, the last thing you want to do is move, but it's the first thing you should do. Go easy, though, and warm up first with a 20-minute walk. Take a swim. One of the best remedies for sore muscles is swimming.