When I have a sore throat I make some hot tea and add some honey to the warm cup of tea which helps to soothe my sore throat.
Taking a steamy hot shower can also add moisture to your throat as well as using a humidifier or vaporizer in your room to keep the air moist.
Also echinacea and sage spray works well when treating a sore throat.
Gargling with salt water or even Apple Cider Vinegar and Salt can also get rid of a sore throat due to the antibacterial and antiseptic properties in Apple Cider Vinegar.
The germs that cause sore throats can't survive once in contact with Apple Cider Vinegar.