1. Anti-inflammatory effect: highly effective fluorinated and chlorinated corticosteroids with anti-inflammatory, anti-itching and vasoconstrictive effects; 2. Selective pharmacological effects on various types of cells: reducing the number of T lymphocytes, monocytes, and eosinophils, inhibiting lymphocyte proliferation and cytokine production, inhibiting macrophage differentiation and phagocytic activity, inhibiting neutrophil adhesion, reducing vascular endothelial cell permeability, inhibiting fibroblast proliferation and collagen synthesis, and inhibiting sebaceous gland cell activity; 3. Anti-proliferative effect: has anti-mitotic effect, reduces DNA synthesis and repair, and thins the epidermis, especially the greatest effect on collagen synthesis; 4. Immunosuppressive effect: by binding to the corticosteroid receptors in the cytoplasm, activating the expression of lytic genes, inducing nuclear DNA lysis in lymphocytes, and directly killing lymphocytes and causing their death.