Hi! I am new here!
Here is my problem. I have a 4 X 6 area of ceramic tile that has some stained grout thanks to my sweet dog Zoe

Anyways, the grout had been sealed according to directions of bottle of sealer. Well, she peed, and it stained.
I have tried cleaning it with regular floor cleaner, and tried to bleach it. It didn't help anything at all. We plan on selling our house this coming spring, and it needs to get fixed. To I try and scrap out the grout

or do I have any other options?
Please help!!
Thanks!
Bon