Hydrocortisone (HC), also known as cortisol and cortisol, is an important adrenal glucocorticoid whose chemical name is 11β, 17α, 21-trihydroxypregn-4-ene -3,20-dione, its pharmacological action is through diffusion on target cells, binding to its receptors to form a steroid-receptor complex Chemicalbook, the activated steroid-receptor complex acts as an activator of gene transcription, and The dimer form binds to specific sequence chains on DNA, regulates gene transcription, increases mRNA production, and uses this as a template to synthesize corresponding proteins, which achieve the physiological and pharmacological effects of steroid hormones in target cells; HC It can affect glucose metabolism and has anti-inflammatory, anti-viral, anti-shock and anti-allergic effects.