Thanks for your query.
of more than 2 weeks,with phlegm color changing from green to white needs to be investigated.she needs CBC,X ray
chest to rule out any infection for which a course of antibiotic is needed.
You have also mentioned he is taking montelukast
for one year ,her symptoms are mostly allergic in nature.i advise you to take her to pediatrician
,as i feel inhaler therapy can be beneficial.
Wishing your daughter good health,