If you’ve been having runny nose with sneezing and post nasal drip that is temporarily relieved by Montek LC but keeps recurring then it probably looks like you are having “allergic rhinitis.”
The generalised weakness with dizziness could be coincidental due to hypotension unless you get it everytime you’ve runny nose for which you need to be evaluated separately.
For now you can use “Fluticasone furate” nasal spray 1puff twice a day
You need to use this patiently as it will take time to work (1 to 3 months)
Next Steps
Visit an ENT specialist to confirm the diagnosis and get an AEC (blood test) done so the doctor can view the reports and advice you if you’ve to continue the spray or not.
Health Tips
Use face mask as much as possible
Change your curtains and bed sheets regularly
Avoid dust and pollution