Stephen-Johnson's Syndrome- an allergic reaction which can be caused by microorganism and drugs. But mostly caused by drugs, medicines, the pills that we intake to make us better.believed to be a rare, but proven to be not. It is important that we should be aware of this because it is fatal if left untreated, and survivors are left debilitated and scarred their whole life.

Check out this link for more information about this ailment.
http://stephenjohnsonsyndrome.blogspot.com/