Hello, You are probably suffering from allergic pharyngo-rhinitis, i.e., an allergic condition affecting your nose and throat. You should avoid the triggers of your malady, i.e., avoid exposure to dust, smoke, cold foods. And yes take lots of water ( not from the fridge, ofcourse !!!). Many a times the culprit is the tonsils. So get a total and differential count of blood done, and also a throat swab culture and sensitivity test. Do warm saline gargle. Take citrus fruits. Avoid spicy food. And don t you worry, usually a course of antibiotic and antiallergic does the job. Yet, consult an ENT Specialist, he/she will examine and give the best advice. Take care.