Constant throat clearing

[masethung]

I have been recently having constant throat clearing issues , I had a Sinus operation done 11 years ago and since then i have not been having any issues , recently the issue has come up and haunting me again, its a very small amount of phlegm that's stuck and its irritating , i have been high on stress and anxiety  recently . I have consulted a ENT however i dont think its related to sinus as i have no other symptoms. Its very worse in the morning and calms down as day progresses and i am engaged on something i dont have it at all , evening it worsens and night during sleep i dont have issues . I have cut down all my food - on fruits , having warm water etc but it refuses to go down . I had a polyp near my rectum removed 10 years ago as well but at that time i had more acid reflux and not throat clearing issue .

Can some one suggest a remedy for the same ?