Didn't have time to read every single reply so if someone has already mentioned this, sorry.

I know it seems to have not been a chemical burn after all and is looking more like a heat burn or scale rot, but thought I should remind people that it is NOT a good idea to put any kind of burn ointments on a chemical burn without direction from your vet due to possibility of a caustic reaction between the ointment and the chemical. Usually this can be avoided by throughly cleaning the area in question with water, but you can never be too safe.