You could use FUE to put grafts into the scar, but then you'll have the dot scars. If it is raised, you can get it lowered some with cortizone injections. I doubt a tension scar will be raised, though. You can have the scar cut out and re-closed. It will cost you at least $1000 and maybe $5000, and will probably only get it down to 1mm, but they may get hairs under it to grow out with trcio closure.