I came across a product that is marketed towards people who make a living from their voices , it claims to relieve hoarseness, in fact it is “designed to moisturize, humidify & lubricate the mucous membranes of the throat and larynx” . A picture from the old west comes to mind with some old timer selling a magic potion from the back of his wagon to cure sore throats or indeed something much worse.
Anyway, there are a couple of very simple rules when doing a voice over, try to avoid chocolate, milky tea, cappuccino and latte before going in to the booth. If you feel like a beverage drink black coffee, herbal tea or just a glass of warm water, and always bring water with you into the booth, and if your throat feels a little sore, honey certainly helps.
The big no no, is to turn up at a session with a very sore throat, where you can barely speak, in that situation it’s best to call your client(preferably the day before the session) and inform them that your voice is not up to its usual standard, and get plenty of good old fashioned rest.