I was told I would be able to start exercising after 6 weeks but, when I told him I lift heavy he said perhaps a bit longer. It can cause nasal pressure or tightness too much pressure may prolong healing process.
I was also on Accutane a couple years ago which can slow down healing process. They say 1 year after a course is good but, who knows.
If I can do something to help with healing and scarring (the faster you heal the better for scarring) why not?