How do you remove permanent marker from an oil painting?

To remove permanent marker from an oil painting, you can try using a cotton swab or a soft cloth dampened with rubbing alcohol or acetone. Gently dab the stained area, being careful not to disturb the surrounding paint. Test the solvent on a small, inconspicuous area first to ensure it doesn’t damage the oil paint. If the stain persists, consulting a professional conservator is recommended to avoid further damage.