If anyone's heard of RICE (Rest, Ice, Compression, Elevation) for healing joints, the new guidance is called POLICE: Protect, Optimal Load, Ice, Compression, and Elevation. The key differences being Protect and Optimal Load, meaning don't re-injure it and expose it to some level of weight-bearing or usage.
Anyone can RICE their joints. It's foolproof, more or less objective and requires no monitoring from a professional.
What defines optimal load? It sounds impossible to gauge, unless maybe if you're working with a physical therapist. Then, what happens if load more than the optimal level? Is the outcome worse than if you just stuck to RICE? I think these are things that have to be considered for medical protocols.
We're still icing and elevating? I've always felt dubious about our attempts to rectify our bodies evolving inflammation. It doesn't seem like any great evil to let the body part get more blood, signals to stop us using it, and a lower range of movement.
It's HELM now: Heat, Exercise, Lower, and Massage. They're all designed to maximize blood flow to, and inflammation in, the injured area. (Note that exercise just means to keep it moving.) Ice and elevation restrict the flow of fluids in and out of the injured area; ice especially slows down recovery and is only recommended for pain management.
(This is basically a simplified version of the protocol NFL teams have been using.)
The guy who termed RICE (Gabe Mirkin) later came out and said he made a mistake. Specifically with the "Ice" part (and partially with Rest). See: https://drmirkin.com/fitness/why-ice-delays-recovery.html