this usually helps take her back to her spot that she wee wee in and say no no... no..no bad girl and point to it them take a pee pad and wipe that area, the let her small the wee pad and tell her to pee. if this happens again repeat and then put in cage for a time out not attention at all. if still going under the furniture put a wee pad under there she will catch on again she is just probally sore from surg. and will take a couple of days to get back in to the swing of things...... good luck!