XQLD is an effective prescription of traditional Chinese medicine for asthma, which has been widely used in clinical in China.[4] Experimental studies found that XQLD may play a role in reducing inflammation and alleviating asthma by regulating TSLP signaling pathway.[5] Pharmacological studies also confirmed that ephedra, Cinnamon Twig and licorice in XQLD have anti-inflammatory and anti-allergic effects. The gene discussed is TSLP; the disease is asthma.