The use of mosquito liquid is generally not recommended for newborns, and mosquito liquid may affect the health of newborns. Mosquito liquid contains many chemicals, including insecticide-type substances. When using mosquito liquid, heating will make the toxic substances in the mosquito liquid evaporate, and these toxic gases will not only affect the growth and development of newborns, but may even cause respiratory allergies in newborns, which may result in sore throats, nasal congestion, coughing and so on. If there are more mosquitoes indoors, parents can use other ways to repel mosquitoes, such as using electric mosquito swatters, hanging mosquito nets and so on. Meanwhile, parents can hang screen curtains on doors and windows, which can effectively prevent mosquitoes from entering the room and affecting the newborn’s rest. In daily life to do a good job in the care of newborns, to avoid newborns contact with chemical products, such as the use of mosquito liquid after the newborn appeared adverse symptoms to seek medical attention in a timely manner.