Check out the first sentence under "Actions and Indications":
To expel wind-cold evils, promote blood circulation and relieve pain.I didn't know muscle pain relief required exorcism.
"Be gone, you wind-cold evils!"
Note: During World War II, the Chinese resistance called the Japanese flag as 狗皮膏药旗 or 膏药旗.
It was a derogatory term referring to the Japanese flag looked like traditional kind of 狗皮膏, where a dab of medicine paste was smeared in the center of rectangular fabric patch.
This term is still used in many parts of China.