As you do have throat infection
, avoid having cold things, fried food, using your voice harshly like shouting/ speaking loudly.
Gargle with salt & warm water - thrice a day.
Take homoeopathic medicatiton - Lachesis 30/ twice daily and Ferrum Phos. 6x/ thrice daily - both to be taken for 3days. There after, revert me back.