Sore Throat Remedies

I have been a singer for many years and have come across few remedies for sore throats that actually work. But lately I have been suffering severely from sore throats due to many different reasons due to illness and straining my voice etc. If anyone can offer any remedies that can help it would be fantastic as my performances are suffering. I know I should be resting my voice especially if I have strained it but I just haven’t got the time to spare. Any form of help would be gratefully appreciated.