Tianyu is the name of disease and syndrome.Song Dynasty, Yang Shiying《Ren Zhai's Prescriptions for Children》Make "Tiandang".It is also called Tianyu Jingfeng and Tiandang Jingfeng.That is, infantile high fever and convulsion syndrome, which belongs to the scope of convulsion."Recent Editions of Young People": "Tianyu is caused by the accumulation of heat in the heart and lungs. It is characterized by tetany, strong phlegm in the neck, eyes turning up, and nails turning blue." When the attack occurs, the head turns backward, eyes turning up, strong heat and palpitations, hands and feet pumping, and even nails turning blue.It is caused by phlegm heat stagnation inside and wind evil outside.It is advisable to expel wind, clear heat, expel phlegm and quench wind.Take medicine firstMengshi Rolling Phlegm PillRemove accumulated heat and phlegm;ReuseLingjiao Gouteng SouporGouteng DrinkAdd and subtract.Heat subsides and wind extinguishes, and then according to the condition, treat according to the syndrome.