Hello and welcome to HCM, Your symptoms show you often suffer from acute pharyngitis which is bacterial infection leading to inflammation of mucous membrane lining the throat. As you have been a victim of this infection many times,i suspect you may have allergy to certain products so i suggest you to avoid chilled water,carbonated drinks,alcohol ,smoking,tobacco chewing, hot and spicy foods and condiments. You can start with a habit of drinking distilled or boiled water to prevent infection as it is mostly water borne. Regular gargling of mouth with lukewarm saline water or antiseptic mouthwashes like chlorhexidine gives soothing effect to the throat and prevents infection. i hope this helps you, take care.