This is another rare yet extremely serious disorder that affects the skin, mucus membrane, genitals and eyes. The syndrome often begins with flu-like symptoms, followed by a red or purple rash that spreads and forms blisters and the affected skin eventually dies and peels off.
Individuals who suffer with the condition require emergency care and often treatment in the burns unit or intensive care ward.
The difference between Steven-Johnson syndrome and erythema multiforme is that the later is less severe and is usually caused by infection, particularly viral infections and chest infections, whereas the former is triggered by other infections such as mumps, flu or Epstein-Barr.
Luckily for the Wallace family Sid seems to be doing okay, with Anna revealing that a mix of “Piriton, paracetamol and lots of fluid and rest” helping him to recover.