I am happy to say that Miel is hanging in. The critical 48 and 36 hours have passed and although his eyes are swollen and red raw there is no weeping. The nose or the ears have not or at least don't seem to have become worse.
I attend to him regularly during the day and even last night at 12.30 pm felt compelled to just watch for a few minutes.
Chickens definitely not counted but fingers very firmly crossed.