Pregnant try not to smell the smell of plasters, occasionally smell the smell of plasters will not affect the fetus, long-term smell of plasters may affect the development of the fetus, can avoid contact as far as possible to avoid. There are many kinds of plasters, different plasters will have different ingredients, most of the plasters have the effect of activating blood circulation and removing blood stasis, such as containing musk, incense, saffron and other ingredients. For women in the early stages of pregnancy, prolonged sniffing of these ointments may increase the chances of miscarriage and malformation of the fetus. Although it is not absolute, but can avoid contact to avoid as much as possible. Try to avoid contact with medicines as well as more irritating substances when you are pregnant. Ointments have a strong odor and are irritating, and women who have vomiting during pregnancy may experience increased nausea, vomiting, and other discomforts from smelling ointments. After pregnancy, try to stay away from the environment with the smell of ointment, if it is unavoidable, you can wear a mask, and pay attention to the environment to open the windows and ventilation, try not to be too airtight.