If the silly putty is stuck to a tough fabric like jeans, you can try to pick some of the excess off. If it is something that is knit like a sweater, socks or more delicat…e fabric, do not pick at it. It could make a hole by picking or scraping at knit or delicate fabric. .
Use a cup or mug if the piece of clothing is small, such as a sock. If the piece of clothing is bigger, such as a pair of pants, use a sink that is plugged. Fill the container with enough white vinegar so that the area with putty can soak in it, not just be saturated. Let it sit in the vinegar soaking overnight. .
The next morning, the putty should have softened and be gooey. Gently pick as much as you can of the piece of clothing. Then wash the area with warm water and soap. .
If putty is still remaining, soak the area in vinegar again over night and wash with soap the next day. Repeat this until the putty is all gone. .
Wash the article of clothing with a regular load of laundry. (MORE)