Hi Denise – with leather, the smell comes mainly comes from how the leather was tanned (along with any other chemicals added to it to prevent water absorption in the case of sofas). So unfortunately in your case there is no good way to get rid of a smell like that. The best preventative method would actually be to purchase a couch with a higher quality leather tanned in the U.S. (such as most vegetable tanned leathers). Unfortunately the price goes way up for those!