Since the cough happens mostly in the morning and hasn't responded to antibiotics or Levolin (levosalbutamol), it might not be a bacterial infection. Instead, it could be triggered by environmental allergies, post-nasal drip, or mild airway sensitivity, which are very common in toddlers. Keeping his room free of dust and using a cool-mist humidifier can help soothe his airways. I gently recommend having his pediatrician evaluate him again to see if an allergy treatment or a different controller medication is more suitable.
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What could be causing my 3-year-old son's persistent morning cough, which hasn't improved with antibiotics or Levolin syrup, and how can we treat it?