Treatments to improve scar appearance??

You can use Scaraway silicone strips - which sounds like what meow described, or Kelocote, which is a paintable silicone gel.  My PS prefers Biocornuem, which I have been using and like.  You can get these in drug stores, or online.

http://www.myscaraway.com/

http://kelo-cote.com/products/advanced-formula-scar-gel-10g

https://www.biocorneum.com/biocorneum/

You might want to talk with your surgeon as to what would be good to use so soon (less than a month post surgery) as healing is still going on. Rather external sutures or surgical glue was used might make a difference too.

For scar reduction I have used Cocoa Butter - not the modern lotions with some cocoa butter in them but plain Cocoa Butter - with great results on myself , my family and our 'animals'. When I was in my mid 20's I succeeded in obliterating about a 1/4 of the skin on my leg from just below knee to just above ankle on outer side of leg. (Yeah - my 'stupid' - training a green colt. . Long story shorter - the entire area should have scarred badly but didn't thanks to using just cocoa butter on it, all these years later no one can see any signs of where it was.

Talk to your Dr before using anything so soon after surgery.

Search on "emu oil" for discussions. Many oils lie on the surface, but apparently emu gets some penetration.

I use Bio oil. I was told that massaging the scar is just as important as use the oils. Op since 25th Feb 2016 but scars fading really slowly. I read somewhere that scars can take 6 months to a year to fade but I think mine will take longer.