Daycare fever policy: when a child stays home.

A fever is the most common reason a center calls a parent at 10 a.m. and the most common rule parents try to bend. Here is the line, the clock, and where the standards disagree.

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Most US daycares send a child home at 100.4 degrees Fahrenheit (38 degrees Celsius) and require the child to be fever-free for 24 hours, without fever-reducing medicine, before returning. That number comes from state child care licensing, which adapts the AAP and CDC standards. The fever itself is not the danger; it is the signal of a contagious illness moving through the room.

What temperature gets a child sent home?

The common send-home line is 100.4 degrees Fahrenheit (38 degrees Celsius), measured by any reliable method. Most state child care licensing rules write that number into their exclusion lists, and most center handbooks copy it. If your center uses a different number, it is in the family handbook you signed at enrollment.

Here is the part most parents miss. The American Academy of Pediatrics, in its 2023 "Managing Infectious Diseases in Child Care and Schools," does not treat a number alone as grounds for exclusion. It calls for sending a child home when fever comes with a behavior change, or the child is too uncomfortable to take part in the day, or another symptom is present. The temperature line in your handbook is usually stricter than the AAP standard, because licensing writes a number that a teacher can read off a thermometer without a medical judgment call.

Note the third row. A fever in a baby under two months is not a daycare policy question; it is an emergency. The AAP is unambiguous on that point.

The fever-free-for-24-hours rule, exactly

A child returns once they have been fever-free for 24 hours without any fever-reducing medicine. This is the most misapplied rule in American child care, almost always in the parent's favor, so read it slowly. The 24-hour clock starts when the temperature stays below 100.4 degrees Fahrenheit on its own, per the AAP Caring for Our Children standards.

1. The clock starts when the fever ends, not when the medicine wears off. If the fever breaks at 6 p.m. Sunday with no medication, the earliest return is 6 p.m. Monday, which means Tuesday morning.
2. Acetaminophen and ibuprofen reset the count. A child whose fever is down only because of a morning dose of Tylenol is not fever-free. The count restarts when the dose wears off and the temperature stays down on its own.
3. Behavior counts too. Even past the 24 hours, a child who cannot take part in the day, eat, or rest is not ready, per AAP exclusion criteria.
4. The center may ask you to attest. Some programs require a signed statement at the front desk confirming the fever-free window and that no medicine was used. That is a licensing-compliant practice, not an insult.

Why centers will not give a fever reducer

Many licensed programs will not administer acetaminophen or ibuprofen to bring down a fever, and that is by design. The logic is simple: a child who needs medicine to keep a fever down is, by the policy itself, too sick to be in group care. Medicating to get through drop-off hides a contagious illness and puts every other child and teacher in the room at risk.

Centers can still give scheduled prescription medicine and emergency medicine such as an inhaler or epinephrine, with the right authorization. Fever reducers are the specific exception in most handbooks. If your center does administer them, it will be under a signed authorization and almost never as a way to keep a sick child in care. For the broader rules on what staff can and cannot give, see our guide to the daycare medication policy.

When the fever is really something else

Fever is a symptom, not a diagnosis. The send-home rule is the same whether the cause is a common cold, influenza, COVID-19, RSV, an ear infection, or roseola. What changes is the return window. A fever that is one face of a reportable or communicable illness can carry a longer exclusion than the basic 24-hour rule, set by the illness and by state and county public health guidance.

Teething does not belong on this list. Genuine teething causes drooling and fussiness, not a true fever. The AAP is clear that a temperature at or above 100.4 degrees Fahrenheit is illness, not teeth. If your baby is over the line, treat it as illness and expect the standard rule to apply. For the full map of which illnesses trigger which exclusions, see our daycare illness exclusion guidelines and the broader daycare illness policy overview.

How many fever days to plan for

Build your work plan around this number, because it is real. Children in their first year of group care average roughly 6 to 10 upper-respiratory infections, per AAP policy on infectious diseases in child care, and a large share of those bring a fever. Most working families spend 8 to 12 sick days per child in that first daycare year, dropping to 4 to 6 per year by the third.

A realistic backup plan is not optional; it is the difference between a manageable year and a crisis every month. Line up at least two backup options before day one. Our guide to emergency and drop-in daycare covers where to turn when your child is too sick for the main room but you still have to work.

When a center over-excludes

It cuts both ways. Some centers apply the fever rule more strictly than licensing or the AAP requires, sending a child home for a single 99.8 reading or refusing return for a day past the window "to be safe." That is not free; it costs you a work day and the center nothing.

If it happens often, ask the director to walk you through the written exclusion policy. State child care licensing regulations are public, and a center cannot quietly exceed them without telling you. If the policy on paper is reasonable but the practice is not, that gap is worth raising, first with the director and, if needed, with your state licensing agency.

Bottom line

The daycare fever rule is short and rarely flexible: 100.4 degrees Fahrenheit sends a child home in most states, and they return after 24 hours fever-free without medicine, per AAP Caring for Our Children standards and state licensing. Do not medicate a fever to make drop-off, count the 24 hours from when the fever truly breaks, and have a backup plan ready before you need it. This is one policy where the strictness is the point.