Should I get CO2 laser as a last resort for my chest keloid scar? (Photo)

I am a 23 year female and I have been worried about a keloid scar on my chest for a long time . It’s very visible so it makes me conscious when I wear clothes .I have had multiple steroid injections , had NG yag laser and applied scar creams locally for the past 6 years . The skin around that area has become very thin and 1 doctor even recommended me to get tattoo over it to hide it. Another doctor said nothing can be done. As a last resort should I get Co2 laser ? I really want to get it rid .