Yes, old carpets can make you sick, especially if you’ve had water damage in the past and there’s mold growing in between the fibers. Old carpets can cause respiratory infections and even stomach illnesses. Your skin can be affected by old rugs, too. Eczema and athlete's foot are common skin problems caused by old floor coverings. If you notice a rash forming on your skin every time you sit or walk on your floor, it could mean your carpet is causing the skin condition. The old carpet can also cause a weakened immune system because your body is constantly fighting against the toxins and dirt being kicked up from your old floor covering. That’s why it’s important to replace your carpets after the expiration date, especially if you have children and pets. You don’t want your pets and your family to get sick from a worn out carpet.