Any advice on cleaning vomit smell from my nubuck leather sofa?

i've tried to blot, dish soap, febreze, and LeatherCPR cleaner so far. Anyone got anything else to try?Any advice on cleaning vomit smell from my nubuck leather sofa?
As it is on leather you need to use something that will not damage it. Em Clean is an enzyme cleaner which is used for killing mold spores but is also used as an anti bacterial cleaner which will rid leather of smells without damaging the leather. (this would also work on a fabric).Any advice on cleaning vomit smell from my nubuck leather sofa?
Set it outside in the fresh air and SUNSHINE for a day. The fresh air will circulate in and around it to whisk the smell away as the sunshine kills the odor causing bacteria that is still on it. Afterward, I recommend using saddle soap to help rehydrate the leather after having used all those chemicals.
My daughter runs a green house cleaning business and introduced me to a wonderful line of products named OdoBan. They make several diffferent products for cleaning and all are remarkable and safe. They have one for odors simply called Odor Eliminator. She uses it at a vets home and office and it works. I have used it to remove moldy and musty smells also. Most of their products can be purchased at Home Depot or sometimes Sam's Club.