Oh, you should see the Dr. I think they will prescribe the best medicine for you.
I'll have to check into the powder form. And honey is something I can try here at home at least. My go to is to su.ck on butterscotch candies but I don't want to run to the store.
Instead of the vitamin c pills have you tried the powder form? My aunt has it and I've used it to help and it works really good. I don't remember the brand name, but you could prolly find it at a health store or something. Gurgling walm salt water, a tablespoon of honey, cough drops.