When is a scar considered too old for massage and other treatments? Is 1 year and 5 months old?

Hello there, i am 1year and 5months post op from gynecomasty with double incision. I started to massage my scars when I was 3months post op, but somehow my scars are a bit like raised. Now I wanted to know is it pointless to massage my scars with cocoa butter and use cocoa butter on them to flatten them as I am now 1year and 5 months post op? P.s I used cocoa butter for like 4months, and everytime I put cocoa butter on my scars they got smooth and flat but once I stopped they are same as before