for you plasticat:
"Rubbing SSKI into a keloid at least twice daily will ultimately flatten them down to a "normal scar", but it can take many months to a year for particularly bad ones. The treatment goes faster if SSKI is mixed "50-50" with DMSO." SSKI is potassium iodide, contained in Lugols together with iodine, here is the complete article: http://www.tahoma-clinic.com/iodide.shtml