
Allergic Rhinitis
Risk Factors
Family history of atopy
Exposure to dust mites
Lack of exposure to animals in early life
Lack of older siblings
Non-attendance of childcare
Heavy maternal smoking in the first year of life
Early introduction of solid foods/formula
Note:
Urban living and environmental pollutants can exacerbate allergic rhinitis.
Strong association with comorbid asthma, eczema, and conjunctivitis (part of the atopic triad).
Pharm Treatment Ladder
1st Line:
Oral/intranasal antihistamines:
Loratadine 10 mg PO OD
Azelastine 125 mcg nasal spray, 1 spray BD
ADD intranasal steroids OR montelukast:
Mometasone 50 mcg, 2 sprays daily
2nd Line:
Montelukast 10 mg daily (5 mg for <14 yrs, 4 mg for <6 yrs)
ADD both intranasal steroid AND montelukast
For Rhinorrhoea:
Ipratropium 22 mcg/spray, 4 sprays TDS
If above fails:
Consider referral for immunotherapy
Review diagnosis and adherence
Note:
Intranasal saline irrigation can improve symptom control and reduce reliance on medications.
Sublingual immunotherapy (SLIT) may be a better option for patients unable to access allergen-specific immunotherapy.
Additonal Notes:
If allergic rhinitis + asthma, intranasal steroids are 1st line.
Be cautious with montelukast: potential for nightmares, aggression, and depression, which is reversible post-cessation.
Regular re-evaluation of treatment efficacy and compliance is essential for long-term management.
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