Pregnant women try not to smell the Yunnan Baiyao, occasionally smell the Yunnan Baiyao will not cause any effect, long-term smell of Yunnan Baiyao may affect fetal development, although not absolute, but can be avoided as far as possible. Yunnan Baiyao is mainly used for removing blood stasis and stopping bleeding, activating blood circulation and relieving pain, detoxifying and reducing swelling, etc. This kind of drug is prohibited during pregnancy, so as not to increase the chances of fetal miscarriage or preterm delivery. There is no substantial use of Yunnan Baiyao, just occasionally smell Yunnan Baiyao, generally will not affect the development of the fetus, but it is not recommended to smell Yunnan Baiyao for a long time, you can minimize the impact. In order for the fetus to be able to develop healthily after pregnancy, do not use drugs at random during pregnancy, the special smell of the drug do not smell for a long time, try to contact the fresh air. After pregnancy need to pay attention to more matters, toxic, harmful food can be avoided contact as much as possible to avoid.