Cough syrup is read as soothing what irritates, often something that wants to be said and keeps catching in the throat. Its sweet-and-bitter taste is traditionally linked to comfort that is not entirely pleasant.
Where in your waking life have you met something like this lately?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.