welcome to health care magic, thanks for the query,
Well your history suggests that you are suffering from , the granular pharyngitis
, it is viral in origin.
Treatment consists of warm saline gargles, an antibiotic coverage to prevent secondary bacterial infection, antiinflammatory pain killer, a potent decongestant like monteleukast, along with vitamin and mineral suppliments.
All this for next 7 days.
Avoid taking, cold
diet. you will be all rite.