Clinical Study on the Treatment of Chronic Airway Diseases (Asthma, Chronic Obstructive Pulmonary Disease) with Shu Fei Tie

Optimize the extraction process and matrix formulation, and combine the use of traditional Chinese medicine volatile oil and chemical transdermal enhancers to develop adermal patch（Shu Fei Tie）

Shu Fei Tie Placebos are made using substances without active drug ingredients, following the same preparation procedures