What’s the remedy for sore throat?
It depends on the germs or microorganisms that is suspected to be the cause.

The sore throat could be a symptom of an infected tonsils( tonsils are structures in the mouth/area around the throat).

If a virus has been suspected to be the cause of this infected tonsils, no antibiotics will be given. Drugs to relieve the pain will be given
Antibiotics are prescribed when bacterial causes are suspected.

You need to go to the hospital for a proper diagnosis.