Contrary to their name, permanent markers don’t necessarily cause permanent damage. So whether a topless Sharpie went rogue ...

Investigate a variety of black ink markers, and find out why they look black ... Some of the brands you used may not have separated into colors at all. Certain “permanent” inks use colored inks ...

We report a vesicular reaction close to patch-test sites that had been previously marked with an Edding 3000 permanent marker. A 42-year-old housewife and teacher came to our allergy department ...