Symbicortol can be used. This type of inhalation preparation is relatively safe for the fetus (there are clinical trials in animals) and can be used, but there are no relevant trials in humans to confirm a complete lack of effect on the fetus. But if you don’t use medication to control your asthma, the effects on the fetus due to hypoxia caused by an asthma attack are much greater than the possible effects of medication on the fetus! So: 1. If you are sure you want this baby, you need to inhale the drug regularly to get your asthma under control. 2, your asthma attack again and you stop the drug too early related, you should be under the guidance of asthma specialist or respiratory specialist according to the degree of control of your asthma symptoms gradually adjust the medication.