Will these herbs work for throat infection and cough?

Hi everyone,

I’m living in Canada for last 15 years and I’ve this  problem of constant throat infection and cough. I have been suffering from this for the past several years years. I  consulted many doctors, but nothing helpeds me. I have been  using  all sorts of medication, nasal sprays etc, still I suffer the same.  I searched online for this and found similar cases a lot. In one site ( Horton spices Markham ) I found a list of herbs  that can be used to soothe the pain and irritation. Will these herbs work for throat infection and cough?  Has anyone tried these?