Urine Odor on Couch?

Hi, hope this helps. I have just had this with a boxer I was looking after, she peed on my sofa. I sprinkled bicarbonate soda and borax then lightly sprayed a mixture of water and vinegar, rubbed it in and left it about 30 minutes. Then I vacuumed off The smell seems to be gone. You could try without the borax as borax is hard to get.