Welcome to HCM
Your description of sympotoms suggest a possibility of URI which could be viral or Bacterial,for pain you can take a simple analgesic
like parcetamol and Hot saline gargle will help to reduce pain and inflamation of throat.
If there is fever
and too much discomfort then it would be better to visit a ENT Surgeon and after examination of throat and nasal passage proper antibiotics and Decongestant may be advised to you to cure your problem.
Please take care of your diet with hot soup and even a Gnger tea helps.
Good Luck to you