Hand foot and mouth disease is a viral infection common in young children. 

Hand, Foot, and Mouth Disease (HFMD, Coxsackievirus) Hand, foot, and mouth disease is a common illness of infants and children. It is caused by a group of viruses called enteroviruses, most commonly coxsackievirus. It usually begins with mild fever, poor appetite, malaise, and sore throat. One or two days after the fever begins, sores develop in the mouth, usually on the tongue, gums, and inside of the cheeks. A skin rash, usually located on the palms of the hands and soles of the feet, with flat or raised red spots and sometimes blisters, develops over 1–2 days. The rash does not itch. Most people get sick 3–7 days after being exposed to the virus.   
      Ref: School Health Manual, MDPH (8/24/24) https://massclearinghouse.ehs.state.ma.us/PROG-SCH/SH3001.html


Students can return to school if they meet the following criteria:

• Have no fever for 24 hours without fever reducing medication.
• Feel well enough to participate in class.
• Have no uncontrolled drooling with mouth sores and are able to eat a regular diet.

Resource 
Hand Foot and Mouth Disease Resource