I have a male cat, who recently started to go through puberty. I got him neutered. But in the meantime he started "spraying" to mark his territory as cats do at that age. He did it on a nice chair of mine, and the smell still lingers. I’ve tried sprays from petsmart, febreeze, vinegar, they just seem to mask it for a few days. Anyone know how to get that smell out, or is the chair ruined? It’s not cat pee, its spray, and it smells horrible.