Dave, are you allergic to a component of Germolene?, also not a sensible thing to use for sunburn of the face. Perhaps the sunburn took the skin off your face? You could have used Goose fat or butter or some other old wives/quacks tale of treatment to the same effect...skin coming off etc.
Or be like me and just consume enough anti-oxidants not to need sunburn at all. But I think we've talked about that in a thread ages ago already.