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 urolithiasis as can be seen on Gotu Kola Herb's page.
Gotu Kola Herbs is a Cold herb that tastes Bitter and Pungent. It targets the Spleen, the Kidney and the Liver.
Its main actions are: Disperses Damp-Heat and detoxifies. Reduces swelling.
Because it is a herb specifically indicated to treat urolithiasis as can be seen on Pyrrosia Leaf's page.
Pyrrosia Leaves is a Cool herb that tastes Bitter and Sweet. It targets the Bladder and the Lung.
Its main actions are: Clears Damp-Heat, unblocks painful urinary dysfunction, clears urinary stones. Removes Heat and arrests bleeding. Clears the Lungs, expels Phlegm and stops coughing.
Jaundice Diarrhea Hematuria Carbuncles Boils Traumatic injuries Urinary tract infection Bloody sputum Abnormal uterine bleeding Coughing