It really all depends on what's causing the distortion. There are some other tools in programs like iZotope RX that can address some of these problems, but sometimes it's hopeless — can you share a sample?
I will have to do a quick transfer to share the WAV but happy to do so.
The distortion is due to the mic sensitivity being set incorrectly. They were Sonic Studio mics (incorrectly) set at high sensitivity for a rock show. I was standing under the stack too, which won't help this situation. But it happened to me at the next show too, where I was at a bar, a bit further back.