First trick
Mix 250 ml of room temperature water with one tablespoon of sodium thiosulfate until completely dissolved.
Apply the solution directly to the bleach stain and let it sit for a few minutes. Then wash the garment in cold water. Do not rub.
Second trick
Mix equal parts isopropyl alcohol and white vinegar. Dampen a cloth with the solution and gently apply it to the stain, without rubbing.
Wash the garment in cold water and repeat the process if necessary until the stain is completely gone.
As you can see, clothes stained with bleach can be refreshed by simply using one of the two tricks above.
