Hand, foot and mouth disease is a common, highly contagious viral disease in children 5 or younger. Its top symptom is a rash in the mouth, hands and feet. It is treatable at home, but may need medical intervention if symptoms become severe. The disease spreads through infected respiratory droplets like sneezing or coughing, infected surfaces and touching someone who has it. It also spreads through infected feces. If a parent changes a diaper and does not wash their hands well enough, it can be carried to other children. Adults can can catch hand, foot and mouth, though it's less common. The Centers for Disease Control and Prevention said it's rare, but recreational water, like swimming pools not properly treated with chlorine, can spread the virus if it becomes contaminated with feces of someone infected with hand, foot and mouth. Symptoms of hand, foot and mouth The most common symptoms associated with hand, foot and mouth disease show up about three to five days after ca...