My neighbor managed to park their SUV into one of my front trees and about two dinner plates worth of bark was scraped off. The tree diameter is around 14". I don't believe it is enough to seriously harm the tree but I want to facilitate the healing process as much as possible. Some sites I have read suggest that duct tape can be used to reattach the larger bark pieces and I attempted that within an hour or two of the incident. I also trimmed the ripped edges of the wound to have a cleaner cut for the tree to heal.
What is the best way to help this tree to heal? I'm worried about it potentially being exposed to an infection, especially if the bark reattachment is not actually a good idea.