Try Nature's Miracle Laundry Detergent for pets, and their other products:
Petsmart.com
Pet Food, Supplies & Accessories at PETCO
I'm not sure about the baking soda but I wouldn't risk it unless someone with more experience here says its ok.
I say the same thing. You can call your veterinarian for a faster response maybe.
Also, I wouldn't use newspapers at all, just puppy pads if you have to use either of those 2 things as a layer. Good luck! Nature's Miracle is the
best. I use their dog cleanup stain and odor remover, and it works completely well. My Shih Tzu puppy went wee-wee in a puddle on the hardwood floor, and I can dry that up, spray this Nature's Miracle stuff, and dry that up, then when I put my nose to that spot, it smells like nothing but the Nature's Miracle, which is fragrance-free.