Apologies for what is not the most pleasant topic, but unfortunately a friend of mine was looking after a dog which has urinated on her couch and I'm wondering if anyone has any advice on dealing with this. I'm not sure whether it has gone through to the foam core of the cushions, but I'm guessing it's likely.

Google is full of advice on various different techniques and products, but I'm wondering if anyone has had first hand experience of anything that actually works? I'm guessing that soaking the cushions is not a good idea because it might be impossible to fully dry the foam core and it could subsequently rot. The dry cleaners are willing to have a go but can't guarantee a result.

I'm really hoping that the cushions aren't a write-off because I'm guessing they will be expensive to replace.