Orange juice works the best for three reasons.
It keeps you hydrated, as most doctors recommend whenever you have any type of cold or flu. Second the vitamin C will boost the ammune system which will halp fight the bacteria causing the sore throat. And thirdly the OJ will work as a topically by killing the bacteria in the throat and healing the throat. It is similar to how putting salt on a wound works. It hurts like hell but heals really well. If you decide to do this you should drink at least 3 tall glasses of it a day [about 16 ounces]. I usually get noticeable results in 3 days. The more you drink the better it is.
If you just want to alleviate the pain cloroseptic works and so does thera flu tea. Your body will get used to the cloraseptic very quick and become almost useless. The thera-flu tea works like nothing else i have ever tried but only for 4 hours.