You can use lemon oil with some warm tea to get rid of a sore throat.
Just take 1 to 2 drops of lemon oil and add the lemon oil to the warm tea and then stir it up and then drink the warm tea to get rid of the sore throat.
Inhaling the lemon oil directly from the lemon oil bottle can work to get rid of a sore throat works as well or add some drops as in 5 or 10 drops to a essential oil diffuser.
Eucalyptus oil also works great for getting rid of a sore throat by either applying it to your chest or throat and then inhaling it or also just inhaling it from the bottle.
Putting some Eucalyptus oil into your diffuser can also get rid of a sore throat when it's put out into the air and absorbed by you.