Most asthma medicines are inhaled. These are entirely safe for your baby. Preventers Preventers help protect the airways. They make asthma symptoms less likely. Preventers usually contain an inhaled steroid.
Many people worry about the effects of steroids.
This means the medicine is highly unlikely to reach the baby. If high doses of inhaled steroids are used, it is sensible to use a spacer device to reduce the risk of absorption. For full details of asthma treatments, see our booklet Take Control of Asthma. Steroid tablets Very rarely more severe asthma in pregnancy needs treating with steroid tablets. Short courses for 1-2 weeks can do no harm to your baby.