Q. Can one remove nail coloring on Shabbos before washing hands for eating Challah, when it is already falling apart and is unattractive, and thus is a “chatzitza’ or a barrier for washing hands or mikva imersion?

A. Horav Shlomo Miller’s Shlit’a opinion is that it is permitted to use nail polish remover on Shabbos when truly needed.

Rabbi A. Bartfeld as revised by Horav Dovid Pam, Horav Aharon Miller, Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit’a.