Treating asthma during pregnancy

Pregnancy can leave asthma unchanged, improve it or make symptoms harder to control. Wheezing, cough, chest tightness and disturbed sleep can signal that the airways are not adequately controlled. Keeping breathing stable helps maintain oxygen delivery and reduces the chance that an avoidable flare disrupts pregnancy care.

Many asthma medicines are inhaled, delivering treatment directly to the airways. A maternity or asthma clinician weighs the known benefit of control against medicine-specific considerations. Stopping a preventer suddenly can allow airway inflammation to return, so medication decisions should be made with the prescribing team.

Tell your antenatal clinician and asthma prescriber about every inhaler, tablet and over-the-counter product you use. Arrange a review early in pregnancy, bring your inhalers and demonstrate your technique. Ask for a written action plan that explains daily treatment, what to do when symptoms rise and whom to contact after hours.

Take preventer medicine on schedule and keep a reliever available as instructed. Reduce exposure to personal triggers such as smoke, dust or strong fragrances where practical. Treat associated nasal symptoms only with options checked for pregnancy, because uncontrolled allergic rhinitis may make breathing symptoms harder to manage.

Seek emergency care if breathlessness is severe or worsening quickly, you cannot speak comfortably, lips look blue or grey, you feel faint or confused, or the reliever does not help after you follow your action plan. Do not wait for a routine antenatal appointment when breathing is significantly impaired.

Contact your asthma or maternity team promptly if night waking returns, usual activities become difficult, wheeze or tightness is increasing, or you need the reliever more often than your plan allows. A flare during pregnancy warrants follow-up even after symptoms settle.

Confirm the purpose of each medicine, whether the device and spacer suit you, how your control will be monitored, and what the plan is for labour and after birth. Also ask who should review any flare and how quickly that review should happen.