Doctors are seeing a spike in a virus that targets children.
Hand, foot and mouth disease, which usually affects infants and children under than 5, is most common during the summer months.
Melanie Melugin, of Frisco, said her daughter, who is almost 2, got it last week. Her fever spiked and a doctor found sores in her mouth.
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"It is a terrible virus," Melugin said. "There is nothing you can do about it but wait it out."
Hand, foot and mouth disease is an intestinal virus that can be spread by unwashed hands. The virus causes red spots and water blisters on the palms of hands, soles of feet and the mouth.
It is not treatable by antibiotics.
Melugin said she quickly discovered her daughter wasn't alone when she posted about the virus on Facebook. Several of her friends said their children also had it, as well as some parents.
She made her daughter always washed her hands and tried to limit her contact with her brother, who did not contract it.
A week later, all is well at home.
"[I'm] very, very relieved because now she is back to her happy self," Melugin said.