
Summer in the Treasure Valley brings pool days at Roaring Springs, camping trips into the Boise foothills, and long afternoons at the splash pad. It also brings a distinct set of illnesses that parents don’t always recognize. A runny nose in January usually means a cold. A fever and a rash in July could mean any number of things — some minor, some that deserve a closer look. This guide is meant to help you sort through the most common summer complaints and decide when a call to your family doctor makes sense.
Why Summer Illness Looks Different
Winter viruses spread mostly through indoor air and close contact. Summer illnesses tend to spread through water, shared surfaces at day camp, insect bites, and heat exposure. That means the symptoms show up in different patterns: rashes on the hands and feet, ear pain after swimming, sudden vomiting a few hours after a picnic, or a fever that spikes without the usual congestion.
Because these patterns are less familiar, it’s easy to either overreact to something mild or wait too long on something that needs attention. Knowing what to look for helps you make a calmer call.
Hand, Foot, and Mouth Disease
Hand, foot, and mouth disease (HFMD) is one of the most common summer illnesses we see in children under five, though older kids and adults can get it too. It usually starts with a mild fever and fussiness, followed a day or two later by small red spots or blisters on the palms, soles, and inside the mouth. The mouth sores are often the most uncomfortable part and can make kids reluctant to eat or drink.
Most cases resolve on their own within seven to ten days. The concern isn’t usually the rash — it’s dehydration. If your child is refusing fluids for more than eight hours, producing very little urine, or seems unusually lethargic, that’s a reason to be seen the same day.
Swimmer’s Ear and Middle Ear Infections
Swimmer’s ear (otitis externa) is an infection of the outer ear canal, and it’s common in kids who spend hours in pools or lakes. The telltale sign is pain when you gently tug on the earlobe, along with itching, drainage, or a feeling of fullness. It’s different from a middle ear infection, which typically follows a cold and causes deeper, throbbing pain.
Swimmer’s ear responds well to prescription ear drops but rarely gets better on its own. If your child complains of ear pain after swimming, especially if there’s any drainage or fever, call your family doctor. Untreated, it can spread to the surrounding skin and become significantly more painful.
Heat-Related Illness
Boise summers regularly climb past 95 degrees, and heat exhaustion is more common than parents realize — especially at youth sports practices, on hikes, or during long stretches at the ballpark. Early signs include heavy sweating, headache, nausea, dizziness, and cool, clammy skin. Getting the child into shade, offering water, and cooling them with a damp cloth usually resolves it within an hour.
Heat stroke is different and is a medical emergency. If a child stops sweating, has hot dry skin, becomes confused, or loses consciousness, call 911. Don’t wait for a same-day appointment — this needs the emergency room.
Stomach Bugs Versus Food Poisoning
Both cause vomiting and diarrhea, and in the short term it doesn’t much matter which one your child has. What matters is hydration and duration. Small, frequent sips of an electrolyte solution work better than large drinks of water, which often come right back up.
Call your family doctor if vomiting lasts more than 24 hours, if there’s blood in the stool, if your child has a high fever alongside the GI symptoms, or if you see signs of dehydration: dry mouth, no tears when crying, sunken eyes, or significantly reduced urination. Infants under six months with any vomiting or diarrhea should be evaluated promptly.
A Simple Framework for Deciding
When you’re unsure, three questions usually clarify things. First, is your child drinking and keeping fluids down? Second, are they alert and interactive, even if crankier than usual? Third, is the illness getting better, staying the same, or getting worse over 24 to 48 hours? A child who is drinking, engaged, and slowly improving can typically be watched at home. A child who is refusing fluids, hard to rouse, or clearly getting worse should be seen.
Certain symptoms always warrant a same-day visit regardless of the illness: a fever over 100.4 in an infant under three months, a stiff neck with fever, difficulty breathing, a rash that doesn’t fade when you press on it, or severe abdominal pain. When in doubt, call. A brief phone conversation with a nurse or physician often settles the question in a few minutes.
Your Next Step
If your family doesn’t already have an established family doctor in Boise, summer is a good time to set that up — before you need one urgently. Having a primary care office that knows your children’s history means faster answers, easier same-day appointments, and less second-guessing at 8 p.m. on a Sunday. Whether you’re in Meridian, Eagle, Star, Kuna, or Garden City, keep our number handy this season, and don’t hesitate to call when something feels off. That’s exactly what we’re here for.
Featured image: Photo by Pavel Danilyuk on Pexels.

