I have tile and I can't help but think that the urine has seeped into the grout and we've mopped the place twice, with bleach, and Fabuloso and the smell is still there.2.  

Most of the time it is a simple fix ... add some ventilation, use some bleach, at worst fix a leak and replace some drywall.

Bleach/baking soda/vinegar...in any order you want.

I have also heard of people needing to bleach underneath the pad where the 'issue' occurred to really get the stank out.

@Donny Widjaja, that picture shows a long-term problem that cannot be fixed with just a slap of bleach and paint.

I had mentioned a bleach solution spray and replacing the insulation that got damp.  

I had my wife soak it with a mop and a bleach solution.

Michael, Bleach does not kill the mold spores, Believe it or not use Dawn and water to scrub it down, and use a microbial to spray it so the spores do not come back, I do Mold Remediation, Hope this helps ....Zack

There is a product called JOMAX, you can find it at Home Depot or Lowes.Mix per instructions w/ bleach water in a pump sprayer and just soak the affected area.

I've tried spraying bleach, then Lysol.