How to heal sore throat?

It depends: Many sore throats are viral and will go away without treatment. Gargle with warm salt water several times a day and eat ice cream or drink cold drinks for comfort. You can find some lozenges that will numb the throat but they will also numb the tongue, which some people don't like. If you also have a fever, headache, bad breath, or swollen glands in your neck, you should be checked.