Typical of Chochrane their report if full of caveats. The studies were small and of low quality and could did not provide enough data to compare ice-baths' benefits to those of other post-run "treatments," say light jogging. Concerns about the risks from ice-baths, largely due to their shocking nature, were also discussed, but little or no data were gathered about these risks, so no conclusions could be drawn.
So, it seems, if you're an ice bather, you have some new data that may help you stay in there just a little bit longer.
Paper: Cold-water immersion for preventing and treating muscle soreness after exercise
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