You are suffering from a throat infection. I suggest you start gargling warm salt water or Betadine gargle thrice daily for 3 days. You might need to start antibiotics and other supportive care if you are having yellowish or greenish sputum and if your throat appears congested on examination
Next Steps
Consult a doctor if symptoms persist
Health Tips
If you have difficulty in swallowing food or liquids or difficulty in speaking then go to a hospital immediately.