To achieve good results, it is the key to fully digest and absorb the cream. Some people have poor spleen and stomach transport function, and the common clinical symptoms are thick and greasy tongue coating, loss of appetite, chest tightness and so on. Taking ointment at this time will not only affect the digestion and absorption of ointment, but also increase the burden on the spleen and stomach, resulting in various discomfort symptoms. Therefore, before such people formally take the cream, doctors will generally prescribe some Chinese medicines for invigorating spleen and regulating stomach, regulating qi and eliminating dampness, so as to improve their spleen and stomach functions and create favorable conditions for the digestion and absorption of the cream. These traditional Chinese medicines are all used for the first time, so they are vividly called "road-opening drugs".

Another function of "prescription drugs" is to observe the reaction after taking medicine through tentative adjustment, so as to prepare for the doctor to prescribe the final prescription in the right way.

For people with normal spleen and stomach function, it is not emphasized that they must take "road-opening drugs", and they can directly take the cream to make up in time.

"Open-circuit medicine" is generally the most targeted decoction prescribed by doctors according to symptoms, and it is usually taken 2~3 weeks in advance. Besides decoction, you can also take some Chinese patent medicines under the guidance of a doctor, such as Huoxiang Zhengqi Tablet, Xiangsha Liu Jun Pill, Shen Ling Baizhu Tablet and Jianpi Pill. As a "circuit breaker".