How to clean bleach stain on linen

Wear gloves, and immediately dab the stain with a cloth soaked in hydrogen peroxide or diluted ammonia. Then hand or machine-wash, according to care instructions, using a “delicate cycle” with reduced spinning (max 600 rpm) and choose a liquid detergent. Choose a liquid detergent.

In case of discolouration, machine-dye your item. If your fabric is white, proceed in the same way, but without dying.