A Marc Pro clears cell waste, lactic acid.
A Marc Pro is not used with injury.
The below info is from “Anti Inflammatory” by Gary Renl, Nicholas Di Nubile, Lenard Smith, Casey Renl, Crystal Renl.
The body responds to injury with a sequence of events.
Inflammatory cells remove debris and recruit cytokines.
During the proliferative  phase fibroblasts build a new extracellular matrix
Inflammation, repair, remodel.
You are moving fluid and other waste from the area back to general circulation.
You want to evacuate the waste