How to get rid of a keloid scar?

Keloids. Cortisone injections (intralesional steroids): these are safe and not very painful. Injections are usually given once per month until the maximum benefit is obtained. Injections are safe (very little steroid gets into the bloodstream) and usually help flatten keloids.
Excise or injection. Injections can make keloids smaller, and excising them may trade them for a normal scar, but there is a 50% recurrence rate.Radiation treatments can reduce the recurrence rate.