Common Nose Symptoms in Children: A Singapore Parent's Guide

Understanding Common Nose Symptoms in Children

This page is written for parents, grandparents, and caregivers in Singapore who want to understand what is going on inside their child's nose — and when it is time to bring them to an ENT specialist. As caregivers, it is essential to recognise the signs of nasal issues early, understand how they present, and know when to seek professional help. Below is a structured guide to the symptoms, the underlying conditions that cause them, and how each is investigated and treated.

Children are not small adults. Their nasal passages are narrow, their sinuses are still developing through the first decade of life, and their adenoids are at their largest precisely during the preschool and early primary years when school cross-infection is at its peak. In Singapore's tropical climate — 80–90% humidity and year-round warmth — the airborne allergens that drive paediatric nose problems never go on holiday. House dust mite is everywhere, the haze season returns each year, and many homes run continuous air-conditioning that dries delicate nasal lining. The combination is why nose symptoms are the single most common reason children are referred to ENT in Singapore.

Common Nose Symptoms in Children

Nasal Congestion

Children may experience difficulty breathing through the nose due to congestion, which can be caused by allergies, infections, or structural abnormalities. In young children the first sign is often noisy breathing, mouth breathing during the day, and snoring at night. Babies and infants who cannot breathe through the nose may struggle to feed because they cannot suck and breathe at the same time.

Runny Nose (Rhinitis)

Excessive nasal discharge, often clear or coloured, can occur due to allergies, colds, sinus infections, or environmental irritants. Clear, watery discharge that lasts for weeks usually points to allergic rhinitis. Discharge that turns thick and yellow-green over a few days, then improves, is the classic course of a viral cold. Coloured discharge that persists past 10 days, or that worsens after initial improvement, suggests bacterial sinusitis.

Nosebleeds (Epistaxis)

Spontaneous bleeding from the nose, usually caused by dryness, irritation, or trauma to the nasal passages. In Singapore the air-conditioned bedroom is the single biggest contributor — chilled, dehumidified air dries out the rich plexus of vessels at the front of the septum (Little's area) and even minor nose-picking or vigorous nose-blowing during a cold causes a bleed. Most paediatric nosebleeds are harmless and stop with simple pressure, but recurrent or one-sided bleeding deserves an ENT review.

Nasal Obstruction

Blockage or narrowing of the nasal passages, leading to breathing difficulties, particularly noticeable during sleep. Persistent obstruction in a child is often a sign of enlarged adenoids, allergic rhinitis, or both together. Watch for the "adenoidal facies" of constant mouth breathing, a slack jaw, dry lips, and a high-arched palate — long-term obstruction does affect facial growth and dental development.

Nasal Itching and Sneezing

Persistent itching inside the nose accompanied by frequent sneezing may indicate allergic rhinitis or environmental sensitivities. Children with dust mite allergy often "salute" their nose — a characteristic upward palm-of-the-hand wipe that can leave a horizontal crease across the bridge. Sneezing in bursts on waking, after making the bed, or after entering a dusty room is highly suggestive.

Nasal Discharge

Thick, coloured nasal discharge, particularly green or yellow, may signal a bacterial or viral infection. A one-sided foul-smelling discharge in a toddler should always raise the possibility of a foreign body in the nose — until proven otherwise.

Common Nose Diseases in Children

Allergic Rhinitis

Inflammation of the nasal passages triggered by allergens such as pollen, dust mites, or pet dander. In Singapore, house dust mite (Dermatophagoides pteronyssinus) is by far the dominant trigger and prevalence in school-age children is quoted at around 40% in published epidemiology. It is the most common single cause of chronic blocked nose, snoring, and morning sneezing in Singaporean children.

Sinusitis

Infection or inflammation of the sinus cavities, often presenting with symptoms such as nasal congestion, facial pain, and post-nasal drip. Acute sinusitis in children classically follows a viral cold that does not get better — coloured discharge persists past 10 days, or there is a "double sickening" with worsening symptoms after initial improvement. Children who get repeated sinus infections often have an untreated underlying allergy.

Nasal Polyps

Non-cancerous growths in the nasal passages, which can obstruct airflow and contribute to persistent nasal symptoms. Polyps are uncommon in children compared with adults, and when they do occur in a young child they should always trigger an investigation for cystic fibrosis or other underlying conditions.

Deviated Septum

A displacement or malformation of the nasal septum, leading to nasal obstruction, breathing difficulties, and recurrent sinus infections. Most children's septal deviations are mild and do not need surgery — but a moderate or severe deviation, particularly with a clear history of nasal trauma (sport, falls, accidental knocks), can be a meaningful contributor to one-sided blockage.

Foreign Body in the Nose

Children, especially toddlers and pre-schoolers, may insert foreign objects into their nostrils, leading to discomfort, nasal discharge, and potential complications if left untreated. Beads, food, paper, small toy parts and — most dangerously — button batteries are typical culprits. A button battery in the nose is a true emergency: it can burn through the nasal septum within hours and must be removed immediately.

Singapore-Specific Triggers Parents Should Know

Children in Singapore live with a unique combination of environmental factors that drive nasal symptoms:

• Year-round house dust mite — bedding, mattresses, soft toys, and curtains in air-conditioned rooms are the primary reservoir
• Childcare and school cross-infection — preschool children average 6–10 viral colds a year; back-to-back colds can look like one continuous runny nose
• The September haze — PM2.5 particles inflame the nasal lining and provoke symptoms even in children who are not strictly "allergic"
• Air-conditioning and dryness — chilled, dehumidified bedroom air dries the nasal lining, causes nosebleeds, and circulates dust if filters are not cleaned monthly
• Swimming pool exposure — chlorinated pool water can irritate the nose and worsen sinus symptoms in children who already have allergic rhinitis
• Second-hand smoke and incense — both are well-documented triggers for paediatric rhinitis and recurrent sinus infection

Presentation and Diagnosis

Evaluation of nasal symptoms in children involves a thorough medical history, physical examination, and sometimes additional tests such as allergy testing or imaging studies. A typical paediatric nose consultation at CENTAS includes:

• Detailed history — timing, triggers, sleep impact, school attendance, family history of allergy, eczema, or asthma
• Examination of the ears, nose, and throat — looking specifically for the allergic crease, mouth breathing, dental crowding, and signs of effusion behind the eardrum
• Flexible nasoendoscopy — a tiny paediatric scope (1.9–2.7 mm) gives a clear view of the adenoids, septum, and posterior nose; well tolerated even in primary school-age children
• Skin prick allergy testing — small drops of common Singapore allergens placed on the forearm, results in 15 minutes, suitable for cooperative children typically from age 4–5
• Imaging — only when needed; a low-dose CT may be used for chronic or complicated sinusitis

Treatment Options for Paediatric Nose Conditions

Allergy Management

Identifying and avoiding allergens, along with medications such as antihistamines or nasal corticosteroids, can help manage allergic rhinitis. Paediatric formulations of cetirizine, loratadine, and bilastine are well tolerated. Modern intranasal corticosteroid sprays (fluticasone, mometasone) are licensed for children and are safe for long-term daily use at the prescribed dose.

Nasal Saline Irrigation

Rinsing the nasal passages with saline solution can help relieve nasal congestion, reduce inflammation, and promote drainage. It is one of the safest, cheapest, and most effective things parents can do at home — appropriate for babies (drops), toddlers (sprays), and older children (rinses).

Antibiotics

Bacterial sinus infections may require antibiotic treatment prescribed by a healthcare professional to resolve the infection. The majority of paediatric runny noses are viral and do not need antibiotics. Antibiotics are appropriate when there are clear features of bacterial sinusitis: more than 10 days of unimproving coloured discharge, facial pain, or worsening fever after an initial recovery.

Immunotherapy

For children with confirmed dust mite allergy whose symptoms are still significant despite avoidance and sprays, sublingual immunotherapy (SLIT) can durably modify the underlying allergy. Dr Pang pioneered SLIT for allergic rhinitis at the National University Hospital and offers it for children from age 5. Read more about SLIT and Allergy Immunotherapy.

Surgical Intervention

In cases of severe nasal obstruction or chronic sinusitis, ENT doctors may recommend surgical procedures such as adenoidectomy, septoplasty, or endoscopic sinus surgery to address underlying issues. Adenoidectomy is one of the most common paediatric ENT procedures in Singapore — it is safe, day-case, and often dramatically improves a child's breathing, sleep, and behaviour.

When to See an ENT Doctor

Consulting an ENT specialist is essential for children experiencing persistent or severe nasal symptoms. Bring your child to be seen if:

• Nose symptoms have lasted more than 4 weeks despite simple measures
• There is persistent mouth breathing, snoring, or restless sleep
• Recurrent sinus infections (more than 3 in a year)
• Nosebleeds are frequent (more than once a week), heavy, or always from the same side
• One-sided foul-smelling discharge — especially in toddlers
• The child has known asthma or eczema and uncontrolled nose symptoms
• You suspect, but have never confirmed, what your child is allergic to

The Adult Version of This Topic

If you are a parent reading this guide because you have similar symptoms, the adult versions of the most common conditions on this page are covered in dedicated guides: Allergic Rhinitis (Sensitive Nose) for itchy, runny, sneezing noses, and Blocked Nose for chronic nasal obstruction. The mechanisms are similar — only the typical triggers and the surgical thresholds differ.

Why Choose Dr Pang for Your Child

• Trained at NUS and through fellowships in the United Kingdom, the United States, and Singapore
• Former Senior Consultant and Clinical Director at NUH ENT
• Pioneered Sublingual Immunotherapy (SLIT) for allergic rhinitis at the National University Hospital
• Established the Image-Guided Surgery Program at NUH for advanced sinus surgery
• Works comfortably with children of all ages — from infants with feeding difficulty to teenagers with sport-related septal deviation
• Allergy testing performed in-clinic — diagnosis and a personalised plan in a single visit

Frequently Asked Questions