Can Xiaoqinglong Tang cause cancer and how long does it take to

There is no authoritative information confirming that Xiaoqinglong Soup causes cancer.
Xiao Qing Long Tang can detoxify the surface and disperse cold (removing cold from the surface of the muscle), warm the lungs and dissolve drinks (promoting the flow of stagnant water and fluid by warming the lungs). It is used in cases of external cold and internal drinking. Malignant cold (fear of cold) and fever, head and body pains, no sweating, wheezing and coughing, sputum is thin and abundant, chest congestion, or dry vomiting, or phlegm-drinking (pathological product formed by impaired metabolism of water and fluid) wheezing and coughing, and inability to lie down, or body pains and heaviness, and swelling of the head, face and limbs.
In this formula, ephedra and cinnamon stick sweat and disperse cold in order to relieve surface evil (evil qi on the surface of the muscle), ephedra declares the lungs and coughs, cinnamon stick transforms qi and moves water (promotes the operation of gas, thus promoting the operation of water and liquid); dry ginger and fine pith warms the lungs and transforms the drink; schizandra converges the lungs (astringes the lung qi) and stops coughing; peony harmonizes and nourishes the blood; half-summers dries up the dampness and transforms the phlegm; baked licorice benefits the qi and neutralizes the middle (replenishes the qi and regulates the spleen and the stomach), and regulates the various medicines (regulates the properties of different Chinese medicines).
It is recommended not to listen to rumors and use medication under the guidance of a doctor.