Where are you located in the world?
What do you feed your rooster?
He just suddenly felt bad? Could he have been fighting with the other rooster?
I would not give him any more Panadol (according to the link below).
I would offer him water to drink, check inside his beak to make sure there's no obstructions.
Careful you are not overheating him by wrapping him up.
Once he's able to drink and move around some, then I would make some wet feed available.
https://www.backyardchickens.com/threads/duck-seriously-injuried.1300333/post-21176599