Sore throat remedy

I tried home remedies it didnt work for me. I just recovered from a very awful and annoying flu, cough and itchy sore throat. I couldnt stop coughing all day coupled with a flu and when i would wake up in the mornings, the phlegm built up even more each time it turned greenish and sticky! It took me 6 days to give up trying at home, in the end i went to nearby clinic and got meds, I got better within 12 hours and itchy sore throat got way better. By the way it was my worst flu ever, my cousin had the same when she was pregnant.