"Zhang Yitong: Under the Asthma Syndrome" records: "Asthma syndrome is caused by cold moxibustion in Shu Fei, and the plaster is sudden, so there is no need to respond. In the dog days of Xia Yue, the white mustard seed coating method is often very effective. "

Cold wheezing is caused by cold, evil entering the lung surface, cold drinks stopping inside and phlegm blocking the airway. Symptoms include shortness of breath, wheezing in the throat, expectoration of fine phlegm, white and slippery fur and tight pulse. It is advisable to warm the lungs and rob the cold phlegm, which can be seen in bronchial asthma and asthmatic bronchitis in western medicine.

At the beginning, people found that the three-volt patch had a good effect on lung diseases.

The reason behind this is the theory of "treating winter diseases in summer" advocated by Chinese medicine.

The growth of everything in nature benefits from the sun's yang, and so does human beings.

It is the best time to treat "Yin-cold disease" because of the interaction between man and nature, and the yang in the body is full in summer, which echoes with the yang outside.

Now, after continuous summary, the treatment scope of three-volt patch has been extended to diseases of internal medicine, surgery, gynecology and pediatrics. According to literature statistics, there are hundreds of diseases.

"Three-volt patch" has become a health care method with Chinese medicine characteristics.