First few minutes
Just happened? Do this first
- Put on gloves and wipe up the solids with paper towels, then bag them.
- Blot or carefully scrape off the excess. Don't rub.
- Act quickly, because a dried stain is much harder to lift.
- Keep heat away from the spot, including hair dryers and heaters.
Vomit on a painted wall combines protein, starch and stomach acid, and a mark left on the paint only sets further as time passes. A fresh mark often lifts when you work it with a nearly dry sponge and plain warm water, but an older one may need several light rounds. Flat and matte paint is the most fragile, and paint that's only a fortnight old should stay dry until it has cured.
Before you clean vomit on painted walls, test a hidden spot to see how the paint reacts. Rubbing hard is the mistake to avoid, since it can burnish flat paint and leave a shiny patch. If vomit stains on walls still show after gentle work, call a professional rather than reaching for something harsh.
Before you start
What walls can take
Use with care4
- Water
- Chlorine bleach
- Solvents (alcohol, spot removers)
- Scrubbing and abrasives
Avoid1
- Soaking
7 items
What you'll need
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- Rubber or disposable glovesKeeps the vomit off your skin while you lift the solids. (opens Amazon)
- Paper towels and a plastic trash bagLifts the solids out without spreading them across the wall. (opens Amazon)
- Vacuum dust-brush attachment or a dry clothRemoves loose dust before any water touches the paint.
- Large non-abrasive spongeLets you wipe gently and wring it out thoroughly. (opens Amazon)
- Mild liquid dish soapUsed in warm water only if plain water doesn't lift the mark. (opens Amazon)
- Baking sodaMakes a gentle paste for a leftover scuff. (opens Amazon)
- Soft clothDries the wall without leaving lint or streaks. (opens Amazon)
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6 steps
Step by step
Step 1 of 6
Lift off the solids first
Put on rubber or disposable gloves and wipe up the solids with paper towels. Drop them into a plastic trash bag, then blot or carefully scrape off the excess without rubbing.
Step 2 of 6
Dust and test a hidden spot
Brush off any loose dust with a vacuum's dust-brush attachment or a dry cloth before any water touches the wall. Then test your technique on an inconspicuous spot. You're fine if the paint still looks bright and no water marks remain after drying.
Careful. If the paint went on less than two weeks ago, don't wet it yet, since water can alter or damage the finish.
Step 3 of 6
Wipe with plain warm water
Wring a large, non-abrasive sponge out thoroughly in plain warm water. Wipe the stained area gently, working from the bottom of the wall up, and rinse the sponge often.
Tip. Keep the sponge damp rather than dripping, so water doesn't run down the paint.
Careful. Hot water sets the protein in vomit, so stay with warm water.
Step 4 of 6
Add a little mild dish soap
If the mark is still there, stir a little mild dish soap into warm water. Rub gently in small circles, working from the bottom up, and rinse the sponge and the wall as you go.
Tip. Wipe the soap off completely, since leftover soap can leave its own film.
Step 5 of 6
Spot-treat any leftover mark
For a scuff or faint spot that remains, gently rub on a paste of baking soda and water. Rinse with a clean damp sponge, then dry the area with a soft cloth.
Step 6 of 6
Dry the wall and keep heat away
Dry the wall thoroughly with a soft cloth, since leftover moisture can lead to damage or mildew. Let the spot air dry fully before you judge the result.
Careful. Heat sets the stain, so keep hair dryers and heaters away from the spot.
If you'd rather buy than mix
Best products for vomit on walls
A plain, mild liquid dish soap is the only cleaning product you need beyond water. Skip all-purpose sprays and glass cleaners on painted walls, since strong solvents can damage the finish.
Amazon Basics Microfiber Cleaning Cloths
How we picked these: each product is made for this type of stain, its maker doesn't warn against using it on walls, and its directions fit the steps above.
Finished the steps? How does it look?
Nice work. Let it dry completely and check it again in good light. Here is what done looks like:
How to tell it's really gone →A faint mark usually needs one more round, not a stronger product.
If the stain was already dried or set, the method changes.
Old, dried or set-in stains →When to call a professional →How to tell it's working
Each wipe should pull a little of the mark onto the sponge, and once the wall is dry the spot should blend with what's around it. A patch that still looks dark when dry is holding moisture, so give it longer before you judge it. Stop as soon as the paint starts to look worn.
What changes for yours
Adjust for your walls
Painted walls
Painted walls take the standard steps above, starting with plain warm water and adding a little mild dish soap only if the mark is still visible. Watch the test spot once it's dry, because a water mark there means you stop and dry the wall fully before going further.
Check the wall again in good light once it's dry, since a damp wall can look different from a dry one. A dull patch that remains after drying is a sign to stop wiping, not to keep going over the same spot.
Flat or matte paint
Flat and matte paint is the most sensitive finish, so use only plain warm water there unless the mark is still clearly visible. Keep the sponge wrung out and dab rather than wipe, since too much water is what marks it.
If you do need the soap step, keep the sponge damp, rinse it often, and stop the moment the mark lifts rather than going over the same patch again.
Washable wallpaper
Washable wallpaper can take the warm water wipe, but keep the sponge barely damp and don't get the paper too wet. Leave out the baking soda paste here, since abrasives aren't safe on wallpaper even when it's washable.
Test a hidden corner first and wipe in short, light strokes so the water doesn't reach the seams. If the paper looks like it's lifting or darkening, stop and blot it with a dry cloth.
Textured wallpaper
Some textured wallpapers cannot be washed at all, so don't wet one unless you know it's washable. If you're not sure, dry-brush the mark gently with a soft cloth and leave the paper alone.
Grasscloth is the one to hand to a professional, since professional cleaning may be necessary for it.
Old, dried or set-in stains
An old mark is harder than a fresh one, so expect more than one pass. Repeat the warm water wipe and the mild dish soap step, rinsing the sponge between passes, and let the spot dry fully before you judge it.
If the vomit has dried, it has sat in the paint, so the first job is to soften it rather than scrub it. Use a damp sponge of warm water, press gently, and blot off what loosens instead of rubbing.
If a mark is still visible after several careful passes and the wall is fully dry, it has soaked into the finish. Wash first, because if it comes clean, repainting may not be needed. If it doesn't, seal the spot with a stain-blocking primer and repaint the area, since a faint shadow can remain on a dried stain even after careful work.
Vinegar, baking soda, peroxide and more
Do home remedies work on vomit on walls?
Most home remedies you'll find online are built for fabric, not paint, and several can set vomit or harm the finish. Anything marked Skip or Avoid stays off the wall, since those can set vomit or harm the finish. Only the remedies the steps actually use are marked Works.
Works2Skip3Avoid1
What makes it worse
Mistakes to avoid
Don't rub the vomit into the paint
Rubbing spreads the mess over a wider area and works the solids deeper into the finish. Lift them with paper towels, then blot or carefully scrape off the rest. Keep your gloves on the whole time.
Don't leave it to dry on the wall
Time makes stains harder to remove, and a dried mark needs repeated passes to shift. Treat it as soon as you can, even if it's late at night.
Don't wet a freshly painted wall
Paint less than two weeks old can be altered or damaged by water, even when the mark is fresh. Dust the spot with a dry cloth or a vacuum's brush attachment and wait it out.
Don't skip the test patch
Try your cleaner on a hidden spot first, and only carry on if the paint still looks bright once it's dry. Skipping this on a flat finish can leave a visible patch that's worse than the original mark.
Don't use baking soda paste across the wall
The paste is meant for a scuff or a small mark, so keep it to that one spot. Rub gently, rinse the sponge often, and dry the area with a soft cloth when you're done.
When to call a professional
If a pale or dull patch is left after cleaning, a paint store can help you match the color for a fix. Grasscloth wallpaper is the exception, since it may need a professional cleaner rather than a sponge. Mention that the mark was vomit so they can recommend a stain-blocking primer if the spot bleeds through.
Questions
Does vomit stain painted walls?
It can. A fresh spill usually lifts with warm water, but once it dries into the paint it can leave a mark that stays. Treating it quickly is the best way to avoid that.
Is vinegar a good choice for vomit on a wall?
No, skip vinegar; acid can make protein harder to lift, and warm water with mild dish soap does the job. Acid can make protein harder to lift, and the warm water and mild dish soap do the job without it.
Can I use bleach on the mark?
Not for this job. Chlorine bleach is listed only for mildew on painted walls, so the steps above leave it out.
Will the wall need repainting?
Often not. If the mark comes clean after washing, repainting may not be needed. If a mark stays once the wall is fully dry, a stain-blocking primer before repainting is the realistic next step.
What if the vomit has already dried?
Dried vomit takes more passes, so you may not get all of it out. Repeat the warm water and mild dish soap steps, rinsing between passes, and keep your expectations realistic.
Can too much water ruin flat or matte paint?
Yes, if you flood the sponge or press hard, flat and matte finishes can be damaged. Keep the sponge barely damp, use light strokes, and check the spot in daylight once it's fully dry. Water rings or a rubbed, uneven look mean you should back off and let it dry.
Can I clean textured wallpaper with a sponge?
Textured paper is a gamble with water, so check the label first. If it's washable, dampen the sponge only a little, avoid anything abrasive, and dry the paper straight away so the seams don't lift. If it isn't marked washable, keep water off it entirely.
Should I clean from the top of the wall or the bottom?
Start at the bottom and work upward, rinsing your sponge as you go. Grime that's wet from above would otherwise run down over paint you've already cleaned, leaving streaks on the section you just finished.
Vomit on other materials
Other stains on walls
Start from the bigger picture
How we know this
Every method, amount and warning here comes from university extension services, industry bodies and product makers. We read them, check every step for unsafe combinations and changed amounts, and write it up so you can follow it.