One well-known remedy for a singer's sore throat is honey. Honey can be very soothing to a sore throat when added in a healthy dose to a cup of warm herbal tea or water. Singers also have been known to drink honey straight from the bottle.
Another basic sore throat remedy is warm salt water. Used as a gargling rinse, warm salt water is very soothing, and has been touted to improve circulation of infection-fighting antibodies. It doesn't take much salt to do the job---just a teaspoonful in an 8-oz. glass of warm water, gargled several times a day.
Vinegar has been long respected as a home remedy ingredient, but many people can't get past the flavor of vinegar in its natural state. A tasty way to get vinegar to a sore throat without the pucker factor is by drinking pickle juice. Any flavor of jarred pickle contains a vinegar base, and the higher the vinegar content the better. Simply pour the pickle juice in a glass and sip on it throughout the day.
Treat a sore throat with a hybrid of store-bought and home-remedy solutions. Find throat drops that contain menthol---look for ones that contain few other synthetic ingredients (Luden's or Ricola, for example)---and dissolve one drop in a cup of hot water or honey tea. Menthol is very soothing, and a great complement to the hot water and honey. You may get a similar effect by adding a drop of mint or peppermint oil to your tea.