"Stepping into what looks more like a time-machine, and probably costs the equivalent of what time travel will in the near future, cryotherapy is essentially the same treatment as an ice bath"
There are countless methods that claim to be beneficial for speeding up recovery. Before I dive into only a few of them I'd like to say that most of them do work to some degree. This does not mean that they are all a must, and does certainly not mean that you'll have DOMS for the rest of time if they are neglected. Before you jump in an ice bath, cyrotherapy chamber, or buy your own pair of those weird compression trousers, for god's sake, just please get your sleep and nutrition on the right path first.