Hi,
Intralesional steroid injection is the mainstay of keloid treatment. The injectable steroid comes in different strengths.
Facial keloids generally respond better than non-facial keloids to treatment. As such, lower strength steroids are used to inject them and to reduce potential side effects such as skin thinning, loss of pigmentation and formation of blood vessels.
For non-facial keloids e.g those on the hands, higher strength steroid injections may be used cautiously if lower strength steroids fail to give adequate improvement albeit the higher risk of side-effects highlighted above.
For other treatment modalities like pulsed dye laser, fractional CO2 laser; response is also better when treating facial keloids compared to non-facial keloids.
Hope this helps!