It’s one of those double edged sword thingymabobs. The inflammation stage will help ensure a supply of fibrins and ‘stuff’, but too much could reduce the internal pressure and restrict any blood transported nutrients. Aside from that is the risk of deposition of fibrins being forced around collagen bundles and inbetween the sheaths, which could cause adhesions. The 2nd (proliferation) stage I believe becomes the main activity only after a couple of days to a week, and remodelling (3rd stage) after about 3 weeks (depending on injury extent of course). Ground substance and type III collagen produced at stage 2 is replaced with the tougher and more dense type I collagen in the 3rd stage. These stages would overlap I imagine.
If the above hold true for PE injuries too (and I can’t see why they would be any different), then I guess the best thing to do would be not to exercise too often for a given intensity, and also massage it frequently after the exercise and give it a couple of days rest, then begin again before the 3rd stage gets a hold. That way you don’t get in a viscious cycle of inflammation. I’m not sure it would make for fast progress, but I’d expect healthier tissues that way.