You can understand Toudaotang like this. It has many functions. Can be used for treating headache, migraine, dizziness, insomnia, dreaminess, dandruff, head itch, alopecia, furcation, Huang Yi fracture, and preventing cerebral infarction. All the problems about the head can be solved. Toudao decoction adopts pure Chinese medicine, plus professional massage and acupoints to achieve blood circulation in the head, and the soup permeates the scalp. I hope the above information can help you, thank you for your adoption!