Traditional Remedies from New Zealand

I have been mulling over the sore throat problem and there is a natural, non-alcohol based, throat spray available over here which claims to possess the following ingredients FYI:-

"Honey, echinacea (antiseptic properties), colloidal silver (ditto), blackcurrant juice (anthocyanins (?)/ antioxidants) for its high vitamin C content, plus a dash of peppermint oil".

I know these (separate) ingredients are fondly regarded by many posters.

It would NOT be suitable for infants under two years of age (cos of the honey content).

I am wondering if this information would be useful to sore throat sufferers.

Cheers from Down Under where we are in the middle of the "Sniffs, Snuffles and Sneezes" season.

Over to you then!