Welcome to HealthcareMagic Forum. You may be having postnasal discharge. This is the reason you are trying to clear your throat always. You need to fond out what you are allergic to. Since you have developed it 4months ago, you need to check if you have been using any new perfumes, pillow cover etc. You can do a allergic test for this. You will need to be on allergy
medications. Wishing you well.