Does anyone know the legend of Xiamen Baosheng the Great?

Emperor Baosheng is the representative of the medical god, who was originally the patron saint of immigrants in Tongan County, Fujian Province. Baosheng Emperor, also known as Daodao Gong and Wu Zhenren, etc. Born on March 15th, the fourth year of Taiping and Xingguo in Song Dynasty (AD 979). He is from Bai Jiao Village, Tongan County, Fujian Province. It is said that Wu Ben once cured Queen Song Renzong (A.D. 1022~ 1063), and the emperor wanted him to be a physician, but Wu Benjian insisted. Legend has it that a dragon suffered from an eye disease and turned to Wu Ben for treatment. But Wu Ben saw at a glance that it was not a human but a dragon, and gave it a bowl of potion, so that the dragon's eye disease that had not been cured for many years could be quickly cured. The dragon was grateful and turned into a prototype, willing to be the mount of the emperor Baosheng. Another legend is that one day Wu Ben went to the mountains to collect medicine and found a tiger with a bone stuck in its throat because it had just eaten a man. Wu Ben couldn't bear to see the terrible scene. He carefully warned the tiger not to eat people again, and then poured the medicine into the tiger's mouth to make the bones stuck in the tiger's throat thicken and dissipate. However, Wu Ben later became a god. In order to repay the debt, the tiger volunteered to guard the temple gate for Emperor Baosheng. After Wu Ben's death, people appreciated his kindness and built a temple to offer sacrifices. Later, it was expanded to Bai Jiao Tzu Chi Palace, and was named "Emperor Baosheng" in the Renzong Dynasty of the Ming Dynasty (BC 1425~ 1426). At the end of the Ming Dynasty, Zheng Chenggong launched anti-Qing activities in Fujian, and local children joined the army in succession. When they go out to war, they will ask for incense ashes and pray for the blessing of the holy emperor. Later, Zheng's army landed in Tainan in the 15th year of Yongle in the Ming Dynasty (A.D. 166 1), which became a festival for Bai Jiao children to worship the mainland from afar, and Bai Jiao children later built it according to the style of Bai Jiao Tzu Chi Palace. The belief of Emperor Bao Sheng was introduced into Taiwan Province Province. It is said that in the early years of the Qing Dynasty, due to the great plague in Taiwan Province Province, Fujian villagers crossed the ocean and invited the spirit of the emperor Baosheng for the south in Tzu Chi Palace in Bai Jiao. The plague soon disappeared. Since then, the temples of Emperor Baosheng have gradually spread all over Taiwan Province.