Hi, I'm South Asian and have problems with post nasal drip that causes my voice to get raspy. Here's an Indian/Pakistani home recipe that works better than any cough drops like Halls etc.
Mix 1/2 to 3/4 cup honey with a 1 1/2 tsp of cinnamon and 1 tsp of powdered turmeric. The mixture will be thick and will coat your throat. Have a tbsp. of the mixture in the morning and at night before going to bed and in between if you need it. I'm also a smoker and the relief is immediate. Turmeric is a bright yellow spice and has many health benefits.You can find turmeric at any Indian/ Middle Eastern store, or order on line.