Nose tip droops when smiling after accident, is there anyway to prevent it? (Photos)

My nose tip has started dropping when I'm smiling. About 8 years ago I had an accident when I dropped a barbell on my face, splitting my top lip and requiring stitches Since then, the area between my nose and upper lip is stiff with scar tissue and I've noticed it pulls my nose tip down when I smile. Is there anything I can do to prevent this? I'd strongly prefer nonsurgical options, but understand if that's the only solution.