Scar tissue and Kenalog injections - 6 months post op. Hello, I’ve been getting kenalog injections in my nose to help a specific spot on my nose that seems to be scar tissue. I'm about 6 months post op rhinoplasty and i haven’t noticed any changes on that specific area and my nose still looks a little bulbous. I’ve gotten 3 kenalog shots with another coming up in just two weeks. How long does it take for kenalog shots to take effect? I feel like this issue should’ve subsided now with 3 injections and it hasn’t. i’m worried i’ll need a revision.