There are also ways to drink silver. Mercury can indeed be used for contraception, but mercury is highly toxic. Maybe drinking a small amount won't kill people. Now, in the northern rural areas of our country, many elderly people use the method of drinking silver for contraception when they are young, which will definitely do great harm to their health. So, in the past, a small amount of mercury was put into the tea or daily food that prostitutes drank. It is said that the effect was very good. Of course, prostitutes were kept in the dark and thought it was incense burner ash or something that could be used for contraception. Otherwise, prostitutes knew that mercury was toxic and dared not drink it.
It is also said that putting musk into a prostitute's navel can prevent pregnancy. For example, two sisters, Zhao Feiyan and Zhao Hede, who are the most "femme fatale" in China, have recorded such contraceptive measures. Of course, two sisters, Zhao Feiyan and Zhao Hede, can't call them prostitutes yet, but they all go the same way. This kind of navel sticking is called "belly sticking". Stick it on the navel, you can end the pregnancy function of a woman's stomach, and you can't get pregnant anymore, but this "belly paste" has been lost.
There are also records among the people. It is said that saffron is the secret recipe of contraception from the palace. It is said that if the emperor doesn't like a favored maid-in-waiting, he will let the eunuch hang the maid-in-waiting upside down and wash her private parts with saffron liquid. It is said that this can clean the semen in the maid-in-waiting. There are also some unofficial history who say that if the emperor favored his concubine before, if he didn't leave it, the eunuch would help the woman massage to ensure that the emperor's semen could not stay in the woman's body, which could play a contraceptive role.
In India and Egypt more than 3,000 years ago, the feces of animals considered to have mysterious power, such as crocodiles and elephants, were also used in contraceptive prescriptions. In fact, because the feces of these animals are highly acidic, it does have a certain spermicidal effect. However, the strong odor brought by animal manure will obviously affect the "sexual interest" of ancient couples.