What would be the best treatment and for how long for the scars detailed below, contractubex patches or gel? (photo)

Hi, I have a few scars on my right ankle post necrosis and infection from open wounds after a car hit me. One is keloid, the other one not at all. Both are still red and purple, the accident and consequent treatment to combat the necrosis and infection were completed about four months ago including the complete closing of the wounds. What would be the best treatment for the scars, contractubex patches or gel? For how long do I need to follow treatment with either option? Thank you for your assistance D