update
Well, the owie has gotten bigger and looks gross (peeling/scabby) but no sign of infection
Have temporarily switched him completely onto his dry food as then he isn't licking the jelly off his face so much afterwards... such a *delicate* eater my Indy... falls in face first and slurps.
Misha is going back to the vets Christmas Eve so will take Indy along for a look over, piece of mind, Angie (the vet) wasn't too fussed when she saw it before, only worried that he would worry it.
We are also fairly certain it was the radiator as he is now avoiding it, and it was his favourite place in the whole world. Our heating is about 40 years old and certain pipes do get hot enough to burn
so we are getting some lumber after Christmas and boxing the pipes in