Hand Wash scrub and rub with Baby detergent & water then dry it. If not use washing machine with Baby Detergent.
try immediately with cold water and laundry detergent old with alcohol or vinegar
Try rubbing the stain with vinegar first and then wash with detergent in machine
I use bio home delicate detergent in washing machine can remove all the smell
The dapple brand baby laundry detergent works for this
Try milk bottles washing cleanser.
Previously bought from pupsik
Baking soda n vinegar