Pregnant women are not recommended to use electric mosquito liquid to repel mosquitoes, may cause some harm to pregnant women and fetuses. Electric mosquito liquid is mainly composed of pyrethroid drugs, which will contain ether, benzene and other harmful substances. Pyrethroid components can paralyze the nervous system of mosquitoes, so that mosquitoes can not move, so as to play the role of mosquito repellent, mosquito killing. Pregnant women use electric mosquito liquid, if the concentration of pyrethroids in the room is too large, it may cause certain effects on the pregnant woman and the fetus, such as headache, dizziness, nausea and other symptoms will occur. It is recommended that pregnant women do not use electric mosquito coils after pregnancy, you can choose physical mosquito repellent methods to repel mosquitoes, common is the installation of mosquito nets and screens as well as non-chemical mosquito repellent methods, the harm to pregnant women and the fetus is lower. At the same time, you can also choose to wear long sleeves and long pants to reduce the exposed skin, so as to avoid mosquito bites.