The information provided here is not a replacement for a doctor. You shouldn't use it for the purpose of self-diagnosing or self-medicating but rather so you can have a more informed discussion with a professional TCM practitioner.
Because it is a herb specifically indicated to treat fish bone stuck in the throat as can be seen on Clematis Root's page.
Clematis Roots is a Warm herb that tastes Pungent and Salty. It targets the Bladder.
Its main actions are: Relieves Wind-Damp, circulates Qi and alleviates pain. clears meridians and eases pain. Softens and releases fish bones lodged in the throat.
Rheumatism Rheumatoid arthritis Muscle cramps Muscle contractions