Muscle soreness is caused by small tears in the muscle tissue. The pain usually starts a few hours to a day after the effort. The damaged muscle heals and makes it more resistant to exertion in the future. During the healing process, the muscle is therefore a bit more sensitive and vulnerable, but in the end it winds up stronger. Moreover, you can also experience muscle soreness during exertion, but this is a different kind of muscle pain.
Muscle ache is a harmless pain and usually disappears on its own after a few days. You don’t have to do anything for this. However, there are some tips for when you suffer from muscle pain.