Rub the toothpaste into the stain with your finger, using a circular motion. Be sure to use toothpaste, not gel. Allow the paste to dry overnight.
Wipe the toothpaste away with a soft cloth, again working in a circular motion. Be sure to remove it all.
Apply several drops of lemon oil to the surface of the piece, and use your cloth to massage the oil into the wood.
Spray the surface with furniture polish and use a second cloth to buff the surface of the piece to a shine. The piece should be left beautifully polished and stain free.
Spray the entire surface of the piece liberally with fabric refresher spray.
Allow the upholstered surface to dry thoroughly before use. The drying time will vary depending on the number of required applications. If possible, allow the piece to set overnight.
Repeat steps 1 and 2 as many times as needed for the water ring to dissipate.