Objective:To study the molding technics of Xiaochuang hydrogel.Methods:The types of base,preservative and humectant were optimized and guided by the viscidity and appearance and stability of the hydrogel.Results:7% CMC-Na was used as base,glycerol as humectant,0.2% sorbic acid as preservative.The proportion of base,herbal extract,glycerol was 5,4,1.The hydrogel was homogenous and had proper viscosity and good stability.pH value was within 6.03~6.56.Conclusion:The molding technics of Xiaochuang hydrogel is s...