Treatment Overview
Your son's treatment with Montair LC Kid 2.5 and Asthalin is appropriate for managing asthma symptoms related to dust allergies.

Medication Details
a. Montair LC Kid 2.5: Combines montelukast to reduce inflammation and prevent asthma attacks, and levocetirizine to control allergy symptoms.
b. Asthalin: A quick-relief inhaler that opens airways during asthma attacks or wheezing episodes.

Guidelines
a. Follow the doctor's dosage and frequency instructions.
b. Monitor symptoms and report any side effects to the doctor.
c. Avoid known triggers like dust.

Consultation Advice
If concerns or new symptoms arise, consult your healthcare provider for personalized advice. This treatment is generally effective for managing asthma with dust allergies in children.