Mould! The Sneaky Troublemaker in Your Home (And How to Stop It in Its Tracks)

You clean your bathroom every week—bleach, scrub, the works—but that pesky mould just won’t go away.

You open the fridge, find a mouldy avocado, shrug and toss it. You forgot about last week’s takeaway too! Gross! Covered in fuzz. Gross, but you throw it out and move on.

But then there’s mould on the ceiling above your bed, where you sleep and breathe deeply for 8 hours a night. Mould inside your office, where your mind goes fuzzy and your sleep takes a hit. Mould on your child’s school shoes or on that expensive leather coat you pulled out for the season. It smells. It’s close to your face. And suddenly, this doesn’t feel like a casual clean-up anymore.

Now the big question:
Is this mould making you or your children sick?
Could you be living with mouldy kids?
It’s a controversial question, but one that desperately needs asking

Mould! The Sneaky Troublemaker in Your Home

Let’s not sugarcoat it. Mould is everywhere. And most of us ignore it until it’s too late.

We tend to brush it off when it’s not immediately “dangerous” looking. But here’s the truth: even if your home is tidy and smells clean, mould can still grow quietly in corners, wardrobes, ceilings, bathrooms and inside walls, and that’s when the real problems begin.

We don’t just see mould. We live with it. We breathe it in. It shows up in the form of a chronic cough, itchy eyes and fatigue. Your children cough endlessly and the doctor says it’s just asthma or a cold that won’t go away. But what if it’s the troublemaker in your home causing it?

You’ve tried cleaning it, but it keeps coming back. That’s the giveaway sign: this isn’t just about hygiene … this is about an imbalance in your living environment.

Are These Mould Moments Familiar?

You’re not alone. I’ve seen this over and over again in the homes I assess:

1. “I cleaned the wall but the mould came back.”

You’ve wiped, sprayed, bleached, even painted over it but the mould keeps returning. You’ve started wondering if you’re imagining it. You’re not.

2. “I’m constantly coughing, but the house is clean.”

There’s a disconnect here. You don’t see visible mould, but your body is reacting to it anyway. Spores can be microscopic. They can live in your mattress, your couch, your carpets. You clean and vacuum, but still feel stuffy, fatigued or congested. Sound familiar?

3. “The smell hit me when I opened the wardrobe.”

That damp, earthy smell? That’s mould. You open the closet, pull out a jacket and it smells ‘off’. Your nice boots have a film of fuzz. You feel embarrassed. You chuck some mothballs in, thinking it’ll help. But mothballs are for insects, not humidity.

4. “I just found out mould can be toxic.”

Yes, some moulds release mycotoxins, but not all toxicity comes from the mould species itself. It also depends on the person and their sensitivity. What’s a minor irritant to one person can be a serious health trigger to another, especially for children, the elderly and those with existing respiratory issues.

Here’s What Happens If You Ignore It

Let’s say you decide to live with it. Just a bit of mould, right?

Nope.

Mould doesn’t just sit there. It grows, spreads and changes the indoor ecology of your home. It invites dust mites, bacteria and even pests. It contributes to poor air quality. And the health effects? They sneak in gradually:

  • Low-grade fatigue becomes burnout.

  • Coughing becomes chronic.

  • Allergies flare up year-round.

  • Skin rashes, brain fog, sinus infections, poor sleep…

  • Mood changes, irritability, anxiety.

And perhaps the hardest part? It’s invisible most of the time. You don’t see the spores, but your body knows something isn’t right.

I’ve worked with families who couldn’t figure out why their child’s eczema kept flaring… until we tested their room and found hidden mould behind a built-in cabinet. The child slept better that very week once the room was remediated.

5 Things You Can Do Right Now

You don’t need to panic. You just need a plan. Start small. Here are five actions that can make a big difference:

1. Inspect one room at a time.

Start with your bedroom. Look at the ceiling, under windows, around wardrobes, behind furniture, under rugs. Use your nose. Musty smells are red flags.

2. Get a hygrometer.

These are inexpensive humidity readers. Indoor humidity should sit between 45–60%. Anything over 60%? Welcome dust mites. Anything over  70%? Mould’s happy place.

3. Ventilate every day.

Open windows. Air out wardrobes. Use fans and exhausts when showering or cooking. Let your home breathe.

4. Ditch the bleach.

Bleach doesn’t kill mould at its roots, in fact, it just discolours the surface. Use products that contain vinegar or are recommended for deep mould remediation. Better still, understand the cause and don’t just treat the symptom.

5. Reach out for help.

If the mould keeps returning, it’s time to dig deeper. You might need a building biologist (like me!) to assess the space for hidden leaks, water damage or ventilation issues.

Mould Isn’t Going Anywhere Unless You Take Action

The truth is, mould has always been here. It’s part of the natural world. But it becomes a problem when we let it get cosy in our bedrooms, our kitchens, our offices.

And while it might feel overwhelming and especially if your family’s health is at stake, there are simple steps you can take today to start making your home healthier.

Your health, your children’s well-being, your peace of mind, yeah, it’s all connected to the space you live in.

So please, don’t wait for the next cough, the next sleepless night, or that mystery rash to strike.

Take one action step now. Just one.

Your future self will thank you.

Author

  • Carol Parr

    We’re glad you’re here. We’re Carol and Tony, founders of one of the longest running Healthy Home Blogs in the world, Mitey Fresh Australia. We’ve been on this journey for the last 25 years and are passionate about helping families sift through health hazards and triggers like allergens, mould, water damage, chemicals and EMFs, to get clarity about what’s toxic and what’s not so they can create a healthy and happy home for their family they love. Each month, people visit this blog seeking focus on the health and wellbeing of their loved ones, sustainable and effective practice tips and guides, to help create and manage healthier indoor spaces, improve the built environment that is pleasing to the senses and support healthy living and nature, every day. Starting this blog was to help change people’s lives, one family at a time, and we can’t wait to share how its allowed us to stand next to you and show you how interpreting these synergies between buildings and the environment they are built in will impact upon the health and well-being of those who occupy them. Find out more about Healthy Homes and what this blog can do for you!

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