I had a similar problem recently, since the foundling kitty we just adopted had a paw wound. We used Yesterday's News per the vet's instructions and I couldn't deal with the smell - just awful.
We ended up putting a layer of newspaper (not shredded - just a few sheets) underneath the layer of litter. It helped with the smell a little, because it afforded the urine a chance to dry a little faster. We did still have to dump most of it when we changed the box, though. I was using a new newpaper layer daily. Sorry I can't be more help.
It was a relief to all of us when we went back to our usual litter! The kitten was particularly happy - ran right back to it. Apparently she didn't like the smell or the texture either.