What is the most effective way to clean lampin? Especially if it's white?

Before we do the cleaning (i meant washing with soap and water), we do soak lampins to hot water first for at least an hour so that the stain will be easily removed once we wash it with soap. It might look like a long process but it isn't especially drying of lampins take only a short time. This type of cloth is usually lightweight. Just be careful in choosing the type of soap/detergent in washing your baby's clothes to prevent irritation or even allergic reactions.