Below are the main rubriks (i.e strongest indications or symptoms) of Hypericum Perforatum in traditional homeopathic usage, not approved by the FDA.
Hacking cough, from an irritation in throat, much increased by the heat and cold air.
Dry cough and prostration in the morning.
Whooping-cough, worse from 6 to 10 P.M.
Nervous system much affected.≡ more ...