Hi, We had a treehouse removed yesterday and the tree was cut into in a few places. The first is about 14 inches (first image), and the two on the opposite side are 3.5 and 6 inches (second image), all vertical. I'm wondering if there's anything I should apply to these wounds to protect the tree? There are also two lag bolts and I'd like to know if it would be better for the tree to remove them or leave them? If I leave them can I cut them close to flush or will the vibration from cutting damage the tree? If I remove them is there any additional wound care I should do beyond what you recommend for the cuts? Thanks!