Hana Kamkar, a famous singer, removed her hijab

There’s no way to directly moisten dry vocal cords. Nothing you drink or spray or dissolve in your mouth passes directly over your vocal folds. Your larynx is separate from your esophagus (and it’s a good thing too, or we’d always be choking). But dry vocal cords quickly become irritated vocal cords, and that’s how you harm your voice. The more water you drink, the better your voice will be.