I've been dealing with this persistent dry cough and throat irritation for the past four years, mostly due to seasonal allergies, but this year it's been different. The cough just isn't going away. It's like there's something stuck in my throat, making me cough non-stop for a couple of minutes until it clears up a bit. It happens every once in a while, but thankfully, there's no breathlessness. I've tried antibiotics, anti-allergics, antacids, and loads of other stuff, but nothing seems to truly help. What could be causing this, and is there something else I should try to get some relief?