Keep Kids’ Smiles Healthy During Cold and Flu Season

By April Toyer, DDS, FAAPD

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Keep Kids’ Smiles Healthy During Cold and Flu Season

When the sniffles start, brushing and flossing are often the last things on a parent’s mind. But cold and flu season can take a toll on your child’s oral health in surprising ways — and a few small habits can make a big difference.

Hydration Helps More Than You Think

When children are sick, they often don’t drink enough water. Staying hydrated keeps the mouth moist and helps wash away bacteria that cause cavities and bad breath. Saliva is the mouth’s natural defense system — and dehydration can quickly reduce it. Encourage your child to sip water frequently, even if it’s just small amounts throughout the day.

Mouth Breathing and Dry Mouth

Nasal congestion often forces children to breathe through their mouths, especially while sleeping. Mouth breathing dries out oral tissues, allowing cavity-causing bacteria to thrive. If your child is congested, use a cool-mist humidifier in the bedroom, and remind them to drink water as soon as they wake up.

Watch Out For Sugary Medications

Many children’s cough syrups, throat lozenges, and liquid antibiotics contain sugar to make them taste better. These sticky medications can cling to teeth, feeding decay-causing bacteria. Whenever possible, ask your pharmacist for sugar-free alternatives. If that’s not an option, have your child rinse with water or brush after taking medicine — even in the middle of the night if doses are frequent.

Getting All the Right Nutrients

Being sick can mean eating less or missing key vitamins that help keep gums and enamel strong. Offer soft, nutrient-rich foods like soups, yogurt, smoothies, and fruits high in vitamin C to support recovery and oral health at the same time.

Brushing When They Feel Miserable

It’s normal for kids to skip brushing when they don’t feel well — but bacteria don’t take a sick day. Keep brushing and flossing routines as gentle as possible: use a soft toothbrush, a mild-flavor toothpaste, and warm water. For younger children, you can brush their teeth for them while they rest.

Don’t Forget To Change the Toothbrush

Once your child feels better, replace their toothbrush (or toothbrush head) right away. Germs can linger on the bristles and cause reinfection. It’s a simple, inexpensive step that helps ensure a full recovery.

By keeping up with hydration, good nutrition, and regular brushing — even during sick days — parents can protect their child’s teeth and gums all season long. Healthy habits at home, combined with regular dental visits, keep those growing smiles strong year-round.