As soon as possible spot treat the back of the stain with soda water or soak the fabric immediately in cold water. Do not put the fabric into warm or hot water as it will set the stain.Gently agitate the back of the fabric for 5 minutes. You may have to leave it for a half an hour or more if it hasn't shifted. Make sure you keep agitating it.If the stain is an old one or dried, you will need to soak with a bleaching agent before laundering. For carpets and upholstery - spray or sponge with soda water, saturating the area. Blot and reapply until stain removed.
It is the protein in egg that you are treating first. Never use hot water on protein stains as it cooks the protein and makes it very hard to remove. Soda water is a clean way to get rid of liquid stains on clothes and carpets. The tiny bubbles in the soda water literally lifts the dirt with them as they rise. So be sure to saturate the stain – work from the back of the stain when possible.
Often lingering stains are removed by plain old sunshine. Hang you clothes out on the line and leave in direct sunlight for a few hours and you will have more certainty no stains remain when clothes are dry.>