Another thing to be careful with, is Ink Stains from cloth/clothing.
It is a good idea to wear light colored clothing while rooting or handling the vinyl; or place a white or light colored towel under the vinyl while rooting hair, eyelashes, putting in eyes, gluing, etc.
An Example we had with this issue: was someone wearing a dark purple shirt while rooting hair, the vinyl head happened to be rubbing against the purple shirt while rooting. When finished rooting, the neck and area under the chin was stained purple.
Avoid wearing or using dark colored cloth/clothing while handling the vinyl, where as the ink could rub off.
If you get an ink stain on your doll, try using Winsor & Newton Brush Cleaner & Restorer to remove the stain.
If that doesn't remove the all or any of the stain, you can use acne cream. Apply cream to the stained area and place in direct sunlight for a period of time(could take several hours, up to 6-8 hours) continue doing this until stain is gone (will most likely remove all, if not some, of the paint layers in that area as well).