This is Dr Basu, experienced Internal Medicine Specialist.
I am here to address your concerns and provide great service.
It seems the environmental changes are not suiting you well.
The allergens density in the air can cause persistent post nasal drip.
You will need to use a nasal steroid spray daily with your claritin and montelukast for better action.
Flonase nasal spray is over the counter nowadays.
You can get it from CVS pharmacy and use 2 sprays each nostril twice daily morning and evenings.
This should help relieving your symptoms over a week or so
I will suggest you to see an allergy specialist for allergy testing also.
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