I always have a packet of these in my first-aid kit, especially in winter or when I fly. I use them when I suffer from slight cold symptoms, like clogged/blocked nose, scratchy throat and minor idiopathic dry coughing, and they work well for me. Besides, I love the taste. If I get serious dry or chesty coughing I would get other lozenges or just prescription medication. Yet, this is not always needed because my blocked airways are sometimes the result of very dry air-conditioned environments, long flights or just changes in weather that affect me. They're good priced too.
SECOND VERSION, AS THE FIRST ONE, WAS NOT PUBLISHED
I always have a packet of these at home, especially in winter or when I have a long flights. I use them when I suffer from slight cold symptoms, like clogged/blocked nose, scratchy throat and light dry coughing, and they work well for me. Needless to say, I don't use this for chesty coughing or severe dry coughing. I also love the taste.