Our ancestors used to eat all kinds of varieties of plants (some of which no longer exist) and so we evolved to have receptors to interact with their makeup.
We live in slightly different times now, but our body still understands plants, and they are useful for many modern ailments.
Herbal medicine especially finds its niche in the gaps left by "establishment medicine" (ie hospital medicine), especially -but not limited to- chronic ilness.
As they are special kinds of food, the medicines are litererally special kinds of nutrients. These can help with acute and chronic illness alike.
Bioresonance is a technology sometimes known as Frequency Medicine based on complex biofrequency technology that uses Pulsating Electro Magnetic Fields with a series of biological harmonious frequencies. These work as a delicate sensor array to detect even very low levels of pathogens (viruses, bacteria, fungi, parasites) that might have avoided detection by conventional means. Further, it can also be used to treat - which looks a bit like magic.
Some ailments that I've seen herbal medicine help with include:
IBS / IBD
Anxiety / Stress
Insomnia
High Blood Pressure / Cholesterol
Energy levels
Cancer (as well as helping manage the effects of Chemotherapy/Radiotherapy)
Endometriosis
PCOS
Auto-immunity (thyroid, skin)
Allergic reactions / MCAS
Eczema / Psoriasis
Grief
Chronic Lyme disease