Topical vaginal contraceptives are mainly chemical agents that kill sperm when they are placed deep in the vagina. For example, there are contraceptive creams, which are translucent objects that can be squeezed directly into the vagina before intercourse to achieve better contraception. In addition, there are also contraceptive diaphragms that can be used by women who put the diaphragm into the vagina before having intercourse and wait for ten minutes for the diaphragm to melt completely before having intercourse, which will also have a corresponding contraceptive effect. External contraceptive pills can be used to achieve better contraceptive effect, but if you are allergic to the drug, you should not apply it.