Foot calluses are one of the most common — and often frustrating — foot concerns. These thick, hardened patches of skin develop gradually and can make walking uncomfortable if they become too dense. Recently, a surprising home remedy has gone viral online: placing bread soaked in vinegar on the callus overnight. But does this unusual trick actually help? How should it be used safely? And why might it work in the first place? Let’s take a closer look. 🦶 What Are Foot Calluses and Why Do They Appear? Calluses are areas of thickened skin that form as the body’s natural response to repeated pressure or friction . They help protect the skin, but over time they can become uncomfortable. They most commonly appear on: The sole of the foot Toes Heel Areas where shoes rub repeatedly Typical signs include: Yellowish or hardened skin Rough or thick patches Mild discomfort while walking A prickly or burning sensation Occasional irritation or inflammation...