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The 30-second answer
Fluids first, then familiar food in small amounts as it stays down. Appetite usually returns on its own as the illness passes, and the job is to keep the athlete drinking, resting, and comfortable, not to fuel a workout that should not happen. On training, the rule of thumb many clinicians and coaches share is the neck check: symptoms only above the neck, such as a runny nose or a mild sore throat, may allow easy activity, while anything below the neck—a chest cough, body aches, vomiting, diarrhea—or any fever means no practice. Even so, whether and when this athlete trains is the family’s and their clinician’s decision, and the coach follows it.
What to do next
- 1
Keep fluids going in small, frequent amounts—water, diluted juice, broth, or an oral rehydration drink from the pharmacy when there is vomiting or diarrhea—and follow the pediatrician’s advice on what to use if fluids will not stay down.
- 2
Offer familiar, easy food as appetite returns: toast, crackers, rice, bananas, applesauce, soup with noodles, yogurt, or eggs, in small plates more often, without pushing a full meal.
- 3
Hold training until the family and the athlete’s clinician say otherwise; use the neck check as a conversation guide, not as a coach’s clearance, and treat any fever, chest symptoms, or a stomach bug as an automatic no.
- 4
Bring the athlete back gradually once the family and clinician have cleared it: an easy day or two before hard workouts, with lunch and the pre-practice snack back in place before the first hard session.
What a sick day looks like at home
- A cold with no fever: normal meals if appetite is there, extra fluids, and an early bedtime; if the family is comfortable and the athlete’s clinician has not said otherwise, an easy jog may be fine, and the athlete stops the moment it feels worse.
- Flu or any fever: no training, something to drink every hour while awake, small familiar food when wanted, and no return until the fever has been gone for at least a full day without fever-reducing medicine and the family and clinician agree the athlete is ready.
- A stomach bug: small sips first, a few swallows every few minutes, then starchy foods such as crackers, toast, rice, or cereal once fluids have stayed down for several hours; hold greasy food and large drinks until the stomach settles, and no practice until vomiting and diarrhea have stopped.
- The first days back: pack the normal lunch and pre-practice snack, add an extra water bottle, expect the first workouts to feel harder than they should, and tell the coach if dizziness, chest tightness, or unusual breathlessness shows up.
What a coach can say
“If you are sick, you are not practicing today, and I will not be the one who decides when you are back; that is your family and your doctor. Go home, drink something every hour, eat what sounds easy, and sleep. When they clear you, we will ease in with a couple of easy days before anything hard. Tell your parent or guardian right now that you were sent home.”
What to avoid
- Do not let a runner practice or race through a fever, a chest cough, or a stomach bug because it is a big meet; training through a whole-body illness carries risks a coach cannot see or manage.
- Do not clear a return, set a return date, or run the neck check as a coach’s screening test; the coach relays the family’s and clinician’s decision.
- Do not push a full meal, a supplement, or a vitamin C or zinc product on a sick athlete; fluids, familiar food, and rest are the plan, and medication questions go to the family and their pharmacist.
When general guidance stops
Any illness with a fever, vomiting or diarrhea lasting more than a day, symptoms that get worse instead of better, an athlete who cannot keep fluids down, illness that keeps returning across a season, or a runner whose appetite and energy do not come back afterward belongs with the family and the pediatrician. Return-to-training timing after any of these is the clinician’s and family’s decision, relayed to the coach.
Urgent boundary
Trouble breathing, chest pain, a stiff neck with fever, confusion, fainting, no urination for most of a day, or an athlete who cannot keep any fluids down needs urgent medical care or emergency services now.
Use the matching resource
These open the complete public handout or released tool. There is no email gate.
Sources
- Academy of Nutrition and Dietetics: Feeding Children When They Are Sick (opens in a new tab)
- American Academy of Pediatrics: When to Keep Your Child Home Sick from School (opens in a new tab)
- American Academy of Pediatrics: Drinks to Prevent Dehydration When Your Child Is Vomiting (opens in a new tab)
For the whole school season
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