I have a lung disorder that flares up every 5 or 6 months, causing chronic cough for several months at a time. Halls menthol cough drops give me as much relief as I've been able to find, but I don't need or want the extra sugar, and I won't consume sugar substitlutes, due to product safety issues. An unsweetened menthol courgh drop would be a great alternative, if I could find one.
One of my favourite recommendations for lozenges for coughs are two things: zinc lozenges with vitamin C, which are flavoured with fruit or slippery elm throat lozenges. I totally agree that you should try to avoid sweetners, they have no redeeming value, as for sugar it's not good for anyone but you will find some lozenges that are sweetened with Manuka honey, a great alternate that is known for its healing properties. Also I'm sure they are some some lozenges lurking about that are made with stevia. An herb that is very sweet and won't affect your blood sugar. Hope that helps.
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