Hand, foot, and mouth disease
Why it happens: Hand, foot, and mouth disease is caused by infection from a group of related viruses, though most cases in the U.S. are caused by the Coxsackievirus A16. The infection typically affects children under five.
Symptoms and treatments: The condition presents as flat or slightly raised red bumps along a person’s hands, feet, and mouth. These bumps can sometimes develop into fluid-filled blisters that further spread the very contagious infection through direct contact. There’s no specific treatment, but cases are usually very mild, and symptoms often resolve on their own within a week or so.
