"Toads are one of the five poisons. Generally, after death, they don't produce maggots. Most toads that produce maggots produce maggots because they have detoxified themselves by eating some rare and unknown things. However, the maggot flies born in toads are rare and precious. There has always been a saying among the people that "the toad born with maggots is a treasure". The treasure refers to the medicine it has, and its pharmacological effect is extremely magical. It can treat many incurable diseases in ancient times. In fact, as early as more than 3 years ago, Li Shizhen of the Ming Dynasty recorded the unique medicinal value and magical efficacy of toad maggots in his Compendium of Materia Medica (42 volumes, 131 pages). Toad maggots mainly contain toad venom, chitin, natural agglutinin, various amino acids, protein, SOD, minerals and so on, which can treat a variety of chronic diseases. However, there are tens of millions of natural maggots in nature, which can be met but not sought. Therefore, the maggots born by toads have been seeking rare Chinese medicine treasures for doctors since ancient times. Moreover, since modern times, the natural environment on which humans and animals depend has been continuously destroyed, making it difficult for people to collect natural toad maggots, which can not meet the daily clinical needs at all. Because there are no batches of toad maggots, with the passage of time, people gradually forget its medicinal value. "