Hi
Welcome to the MedHelp forum!
If the pain is internal then it can be due to laryngitis or inflammation of the voice box. Gargling with warm water and antibiotics help. If it is on the outside then it can be due to inflammation of thyroid or a boil or a swollen lymph node. Please consult a doctor as diagnosis is not possible on net.
Take care!
not sure , but i think you should seek medical help