This condition has to be treated or it will result in death.
To treat a patient with Stevens-Johnson Syndrome, doctors will immediately stop the patient from taking the offending medication and start them on IV fluids and high calorie formulas to aid in the healing process.
A spokesperson for Nurofen said, "We are very sorry to hear about Macey Marsh’s condition and we wish her a swift and full recovery. The exact cause for the reaction is currently unknown and the reaction is unpredictable."
The spokesperson also mentioned that although ibuprofen, the active ingredient in Nurofen for Children, has been associated with rare cases of the syndrome, there is no confirmed causal link.
Photo source: https://www.youtube.com/watch?v=uAVRrJmnoEc