Hydrogen peroxide. Cover the entire area with paper towels, soak generously with hydrogen peroxide, and cover with plastic (I used garbage bags). soak for an hour or 2, and repeat xx times as necessary. Let dry full overnight before reapplying. This will also remove the varnish or stain from the wood, as well as paint from trim, so be prepared to refinish, but it works quickly and efficiently without chemicals and tons of sanding. ... View related article.
