What can I do to help the swelling after subcision?

I had subcision done on a surgical scar located on my face (cheek) about 2 months ago and it is still tender and a bit swollen around the edges of the scar which makes it more noticeable. Any suggestions on how I can get the puffiness to go down faster? I have tried ice and heat compresses which seems to have helped a little bit. I am also using lavender oil.