My scar was opened twice for repeat OHS. The last surgery was about 4 1/2 years ago and is so faded there are portions where it is almost invisible. Both times, the skin was glued closed (full sternotomy) and I had steristrips covering for the first two weeks. Washed with soap and water and never put any cream or anything on it.
We are all different and our bodies heal in their own way.
It surprises me when I read some surgeons still close with staples. Were I having another surgery, I think I would make special request they not do that.