There are things that individuals claim are helpful; maybe they are, but there's very little scientific evidence behind most of them. Go to the NIH website and look up natural remedies. You'll find a very helpful list there.

I have been trying an herb called OSHA root. So far it just breaks up the phelegm

I have essential oils to help me breath, peppermint and euculpus,(didn't spell that right), plus lavender is always good to help relax.

I heard putting CBD (sp) oil under the tongue helps with breathing. Haven't tried it yet, but would like to.

I use essential oils to help me and they do one is a blend called respitory ease helps!