One thing I've come to use every night when I groom Missy are the Perfect Coat Bath wipes, we use the moisturizing ones which are also unscented (http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=18592).
I use them to wipe any pollen off of her and her paws, this has helped a lot with her alleric reactions (chewing paws, etc).
I tried a lot of different ones that were specifically for paws or face but these are the only ones she didn't react to.
I still just use a plain warm wash rag on her face though.