Hand, Foot & Mouth: The Illness That Looks Scary (But Usually Isn’t)

By Ilana Lawrence - The Sick Sense | Baby & Child First Aid Education | Newcastle, Lake Macquarie & Beyond

Hand, Foot & Mouth Disease (HFMD) is one of the most common childhood illnesses — and one that can feel quite confronting for parents, especially the first time you see it.

The blisters.

The sudden drop in eating and drinking.

The change in your child’s behaviour.

It’s a lot.

But here’s the reassuring part: most cases are mild and settle on their own. What matters is knowing what you’re dealing with, how to support your child through it, and when it’s time to escalate and get extra help.

What is Hand, Foot & Mouth Disease?

Hand, Foot & Mouth Disease is a common viral illness, usually caused by enteroviruses.

It spreads easily between children through:

• saliva (coughing, sneezing, sharing cups)

• fluid from blisters

• contact during nappy changes

It’s most common in children under 5, but older children (and even adults) can still get it.

What are the symptoms?

HFMD often starts like a typical viral illness:

• fever

• sore throat

• reduced appetite

• feeling generally unwell

A few days later, a rash appears.

What does the rash look like?

You may notice:

• small blisters or spots on the hands and feet

• sores around or inside the mouth

• spots in the nappy area

Every child is different — some have only a few spots, others have more widespread blisters.

How long does it last?

Most cases last 7–10 days.

The rash may look worse before it gets better, and mouth sores can be particularly uncomfortable — especially when your child is trying to eat or drink.

The biggest concern: dehydration

One of the main reasons children with HFMD need medical attention is reduced fluid intake due to mouth pain.

Watch for signs of dehydration:

• fewer wet nappies or reduced urine

• dry mouth or lips

• lethargy or low energy

• refusing to drink

If you notice these signs, it’s important to seek medical advice.

How to treat Hand, Foot & Mouth at home

HFMD usually does not require specific medical treatment. Management is focused on comfort and hydration.

Prioritise fluids

Hydration is the most important part of care.

• offer small, frequent sips

• try oral rehydration solutions

• use ice blocks, jelly or flavoured drinks if your child is refusing water

💡 Paediatric nurse tip: Giving pain relief 30 minutes before offering food or fluids can significantly improve your child’s willingness to drink.

Support comfort

• use pain relief (paracetamol or ibuprofen as advised)

• offer soft, bland foods (yoghurt, custard, toast, puree)

• avoid acidic or salty foods that may irritate mouth sores

• consider lukewarm baths to soothe the skin

Protect the skin

• do not pop or squeeze blisters

• keep nails short to reduce scratching

• allow blisters to dry naturally

Encourage rest and recovery

Sleep plays an important role in healing.

It’s okay if your child is not eating much — fluids matter more than food during this stage.

Stopping the spread

HFMD is highly contagious, particularly in the early stages.

To reduce spread:

• wash hands regularly (especially after nappy changes)

• clean toys, dummies and surfaces

• avoid sharing cups, utensils or towels

Children can often return to daycare or school once they are feeling well, even if some spots remain.

When should you seek medical help?

You should seek medical advice if your child:

• is not drinking or keeping fluids down

• shows signs of dehydration

• is very lethargic or difficult to wake

• has ongoing high fevers

• or if you are concerned

Trust your gut. You know your child best.

You’re not overreacting — you’re advocating

One of the hardest parts of parenting a sick child is not knowing what’s normal and what’s not.

HFMD can look alarming, but in most cases, it’s manageable with the right knowledge and support.

That’s exactly why The Sick Sense exists — to help parents feel more confident recognising illness, understanding red flags, and knowing when to act.

Want to feel more confident next time?

We offer:

Baby & Child First Aid Workshops (face-to-face)

Private group training sessions

Bite-sized online courses

Nationally accredited first aid training (HLTAID009, HLTAID011, HLTAID012)

Because learning what to do before you need it… changes everything.

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Final thought 🤍

Hand, Foot & Mouth Disease is common. It can look scary.

But with the right knowledge, you can navigate it with confidence.

And that’s your Sick Sense.