Pee Stains and Bath Soap Reccomendation

I asked a question a while back on how to get rid of pee stains on hedgehog fur. Someone told me to use a tiny bit of baking soda in his bath and scrub it on the stain. This didn't seem to work. Does anyone have any other suggestions on what to do, or even bath shampoo recommendations that could maybe help me out with this problem? Thanks