To get rid of the excess stain now, take a cloth dampened with mineral spirits and use that to scrub down the piece. This should remove the excess stain.
I would apply a gentle paint stripper and take stain off with a putty knife. Then remove excess stain with steel wool (gentle grade not to scratch wood). Reapply stripper if needed. Wipe table down to remove all stripper after stain is removed. Leave bare wood to dry for 24 hours.
Combine four tablespoons of baking soda in ¼ cup of lukewarm water and mix into a paste. Apply this liberally to the stain and rub at it with your finger or a toothbrush. Let the paste sit for a while to work fully.
Soak item for 15 minutes in a mixture of 1-quart lukewarm water, 1 tablespoon ammonia, and a squirt of liquid dish soap. Gently rub stain from the back, then soak for an additional 15 minutes. Rinse the item, then soak in Oxy-Clean solution for at least 30 minutes, or until the stain is gone. Launder normally.
Hydrogen peroxide is a powerful stain remover, natural disinfectant, and whitening agent – all without leaving harmful residues behind. It's safe for most washable, dye-stable fabrics and works effectively when added to your regular wash cycle or as a pre-treatment solution.
Dish soap can be applied to stains before you run the wash, to better prevent them from settling into the fabric. Handwashing small loads: Dawn® Platinum can help remove stubborn oil and food stains, making it an ideal option for handwashing small loads of laundry.
Pay attention to how long you leave the stain on the wood before wiping off any unabsorbed liquid. The longer the stain is left on, the deeper and richer the color will be. For consistent color, use careful timing.
Sponge the stained area with a dry-cleaning solvent; let it air-dry. Soak the stain in a solution of one cup of liquid laundry detergent and a few drops of ammonia (Caution: Never mix chlorine bleach and ammonia - the resulting fumes are hazardous) for at least 30 minutes. Launder using liquid laundry detergent.
You'll need to create a cleaning paste by mixing equal parts white vinegar and baking soda. Apply the paste onto the affected area and let it sit for about 30 minutes. Then, use a soft-bristled brush to scrub the spot. Use enough pressure but not too much that you'd damage the wood.
If the stain is already dry, apply liquid laundry detergent or stain remover and let it sit for 10-15 minutes before rinsing.
After the wood has dried, it's time to sand its surface. You can use sandpaper or an electric hand sander, depending on the size of the area you're working with. Sanding the wood will remove the stain and expose the fresh, unstained wood beneath it.
Simply use a lint-free rag soaked in mineral spirits or paint thinner to rub the areas of over-application—wherever the stain has puddled or is thick and sticky—to remove the excess stain.
While the complete “recipe” is inaccessible for the masses, a Dawn spokeswoman has pointed the magic to uniquely powerful surfuctants—or, the chemical compounds that reduce the surface tension of a liquid when it's dissolved, aka the stuff that cuts the grease.
Removes Stains
Vinegar is a great solution. "Especially on white fabrics, vinegar can tackle stubborn stains by being added directly to your laundry or used as part of a pre-treating soaking solution," says Morgan LaLonde, laundry brand manager for Whirlpool.
Combine baking soda and dish soap to form a thick paste. Store in a small glass jar. To use: Take some paste, thin out with a bit of water and apply. Let it sit for at least 10 minutes, then scrub and rinse with water.
Create a solution by combining equal parts white vinegar and lemon juice. Soak the stained area in the solution for 15-30 minutes, allowing the acids to break down the stain. Rinse the garment thoroughly to remove any residue. Follow up with a standard wash.
Hydrogen peroxide is better for getting rid of tough stains and whitening whites. Vinegar, on the other hand, does a better job at removing residue from clothing and hard water build-up.
But with OxiClean™ Versatile Stain Remover you can get out even tough, set-in stains. Always test OxiClean™ Versatile Stain Remover on an inconspicuous area first. Always follow manufacturer's instructions for the item for water temperature and for cleaning.
Straight vinegar can be used for most stains, including food, sweat, and set-in stains. Just spray the stain thoroughly right before washing. Or use hydrogen peroxide and water in a 1:1 ratio to soak out stains, including grass and food.
When mixed with water, baking soda is an effective stain remover that you can use on almost any stain to lift the dirt and leave the stained item looking clean and fresh again. Mix the baking soda with some water to make a paste and apply it to the stain you wish to remove.