I been suffered from keloid too. It is itchy, painful and ugly. I been doing steroid injections, laser, ultrasound, silicon sheet and botox. So far steroid injection works best for flattening the scar. Then I use silicone sheet to help with the itchiness. So far it's still work in progress. I just wanted to share my photos and experience. Please have a look.
http://keloiddiary.blogspot.com/