Remove Wite-Out from leather by scraping off as much as possible and then cleaning the leather with a solution that’s leather safe and appropriate for the type of Wite-Out used. Aqua/Wite-Out products are water-based. All other Wite-Out products are petroleum-based.
Remove dried Wite-Out from the leather's surface by gently scraping it off with a fingernail or with the edge of a credit card or by brushing it gently with a soft-bristled brush. Avoid gouging the leather.
Remove water-based Wite-Out using a soft cloth dampened with a soap-and-water solution. Without scrubbing or oversaturating the leather, work the solution into the stain until it’s gone. Wipe from the center out to minimize the potential for water stains.
Petroleum-based Wite-Out needs a degreasing cleaner. Citrus cleaners and mineral spirits are two options. Put a small amount on a soft cloth. Dab the cloth onto the stain to remove the stain.
Test any cleaning solution, especially a harsh one such as mineral spirits, on a hidden area of the leather before applying it to the stain. Allow the solution to dry thoroughly. Inspect the treated area for discoloration or other signs of damage.
If the Wite-Out hasn’t penetrated the leather too deeply, the stain may wear off over time. This may be preferable to risking damage to the leather by cleaning it. Alternatively, the stain can be treated, and perhaps removed, by a professional leather cleaner.