The highly contagious disease is spread by coughs, sneezes and spittle. Hundreds have been diagnosed with hand, foot and mouth disease in Waco and now cases are popping up in San Antonio.
Northside ISD says they have had three cases this year - two of them were detected just this month at one elementary school.
The symptoms may be tough for young children to handle, but it's a viral outbreak that isn't considered dangerous enough to warrant sending notes home to parents.
That's because by the time the bumps and sores appear, it is usually past the contagious stage. Still, it can infect a daycare pretty quickly.
NISD says they immediately get the rooms wiped down when they hear of an outbreak. But, it is said that one major line of defense is washing hands.
"When we start seeing this rash on the feet and the hands, and they're complaining of the mouth - they don't want to eat because their mouth is sore, we will tell parents that we want them to be taken to the doctor to diagnose what it is," says NISD's director of health services, Shirley Schreiber.
Authorities say there is a tougher strain out there that the CDC is monitoring, but that strain has not been reported in San Antonio.