There are several methods now available to treat keloids. Aside from cortisone inkections, surgery, laser, silicone sheets, cryotherapy, interferon, radiation
. Injections are usually given once per month until the maximum benefit is obtained. However, steroid injections can also make the flattened keloid redder by stimulating the formation of more superficial blood vessels. (ref: http://www.medicinenet.com/keloid/page3.htm#9howcan) It is best that you have your keloid evaluated by your dermatologist and discuss which of the treatment options mentioned is suited for you.
I have 2 keloids on my chest and 3 on my back. I had the steroid injections once a month for 6 months. Initialy the results where good but after about 8 months they started to grow again.
I have tried many different treatments and "remedies" and found that a simple block of ice, once a day, directly on the keloid not only took away the itching