Turmeric stains easily, and those stains can be really difficult to shift - especially on light colored fabrics. You stand the best chance of getting rid of turmeric stains for good if you treat the stain as quickly as possible. Avoid heating or drying the garment as this could set the stain in the fibers making it even harder to remove. If turmeric staining remains even after trying stain-removal methods then you may need to consider dying your garment instead.