Possible Causes
a. Allergies (e.g., pollen, dust)
b. Viral infections (e.g., common cold)
c. Non-allergic rhinitis

Diagnostic Steps
a. Allergy testing
b. Nasal examination
c. Review of medical history

Treatment Options
a. Antihistamines (e.g., Allerone-M Tablet)
b. Nasal corticosteroids
c. Avoidance of known allergens

When to See a Specialist
a. Symptoms persist despite treatment
b. Severe or worsening symptoms
c. Presence of additional symptoms like fever or facial pain