.psoriasis, help

My friend was admitted to Clatterbridge hospital as an in patient for plaque psoriasis, he stayed one day out of a potential minimum week, this was three weeks ago during the storms, now about three weeks later it looks as though plaque psoriasis has transitioned into erythidermic psoriasis which is 100 per cent over his body and face, he in terrible pain and suffering from shivering, If I take him to accident and emergency will they treat him. He might need antibiotics. Will they turn him away, this would be Clatterbridge dermatology or Arrowe Park hospital. (I have never known a more hostile hospital) Is this very dangerous? Dr has referred him as an emergency but he has not had a call from Clatterbridge who would be the best place for him. I'm just worried about complications with this psoriasis, he has diabetes and is an asthmatic.