Catching a cold or flu can be uncomfortable at any time, but becoming sick during pregnancy or while breastfeeding can raise additional concerns. Pregnant women may wonder whether an infection could affect their baby, while breastfeeding mothers may worry about passing an illness to their infant or taking medication that could enter breast milk.
Most common colds are mild and usually improve with rest and supportive care. However, influenza can be more serious during pregnancy because pregnancy causes changes to the immune, heart and lung systems. Knowing the difference between a common cold and flu, understanding safe treatment options and recognising warning signs can help mothers protect their health and their babies.
Cold and Flu Symptoms During Pregnancy
A common cold may cause a runny or blocked nose, sneezing, sore throat, mild cough and tiredness. Fever can occur but is generally less prominent than with influenza.
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Flu often begins more suddenly and can cause fever, chills, headache, muscle aches, pronounced fatigue, cough and sore throat. Some people may also experience vomiting or diarrhoea.
Because pregnancy itself can cause tiredness, nasal congestion and other changes, it is not always easy to identify an infection based on symptoms alone. If you develop significant symptoms or suspect influenza, contact your healthcare professional for advice.
Why Flu Requires Extra Attention During Pregnancy
Pregnancy can increase the risk of complications from influenza, including more severe respiratory illness. For this reason, pregnant women are generally encouraged to discuss flu prevention and vaccination with their healthcare provider.
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If flu is suspected, medical advice should be sought promptly. Antiviral treatment may be recommended in pregnancy when clinically appropriate, and these medicines work best when started early.
Do not wait for symptoms to become severe before contacting your doctor or maternity care team.
Managing a Cold During Pregnancy
For a mild cold, supportive care is often enough. Getting plenty of rest and drinking adequate fluids can help prevent dehydration and support recovery.
Warm fluids can soothe a sore throat, while saline nasal sprays or saline rinses may help relieve nasal congestion. Using a humidifier or breathing in gentle steam from a warm shower may also provide temporary comfort.
Honey can help soothe a cough in adults, although it should never be given directly to babies under one year of age.
Before taking any over-the-counter cold or flu medicine during pregnancy, speak with a doctor, midwife or pharmacist. Some products contain multiple active ingredients, and not all are appropriate during pregnancy.
Be Careful With Cold Medicines
Pregnancy changes the way certain medicines should be selected and used. Avoid self-medicating with combination cold and flu products without professional advice.
Some decongestants and other ingredients may not be suitable for everyone during pregnancy, particularly when certain medical conditions are present. Similarly, herbal or “natural” remedies are not automatically safe simply because they are natural.
A healthcare professional can help determine which medication, if any, is appropriate based on the stage of pregnancy, symptoms and medical history.
Colds and Flu While Breastfeeding
Having a cold or flu does not usually mean that a mother needs to stop breastfeeding. In most cases, continuing to breastfeed provides important nutrition and immune support for the baby.
Many respiratory infections are spread through droplets and close contact rather than through breast milk. Mothers who are sick should therefore focus on reducing the chance of respiratory transmission.
Wash your hands regularly, particularly before touching the baby or breastfeeding. Cover coughs and sneezes, dispose of tissues properly and clean frequently touched surfaces. A well-fitting mask may also reduce the spread of respiratory viruses when caring for an infant while sick.
If you are too unwell to breastfeed directly, expressing breast milk may allow another healthy caregiver to feed the baby, provided this is practical and safe.
Choosing Medicines While Breastfeeding
Many medicines are compatible with breastfeeding, but the choice depends on the specific drug, dose and the baby's age and health.
Tell your doctor or pharmacist that you are breastfeeding before taking any medicine. Avoid taking several products containing the same active ingredient, as this can result in accidental overdose.
Some medicines can also affect milk production or cause effects in the baby. Professional advice is especially important if the infant is premature, very young or has a medical condition.
When to Seek Medical Help
Pregnant women and breastfeeding mothers should seek medical advice if symptoms are severe, persistent or worsening. Urgent medical attention may be needed for difficulty breathing, chest pain, confusion, severe weakness, dehydration, persistent high fever or other concerning symptoms.
During pregnancy, reduced fetal movement, vaginal bleeding, severe abdominal pain or other pregnancy-specific warning signs also require prompt medical assessment.
For a breastfeeding infant, seek medical care if the baby develops breathing difficulties, poor feeding, unusual sleepiness, signs of dehydration or a fever, particularly in a very young infant.
Preventing Colds and Flu
Good hygiene remains one of the simplest ways to reduce respiratory infections. Wash hands regularly with soap and water, avoid touching your eyes, nose and mouth with unwashed hands and maintain good ventilation indoors.
Avoid close contact with people who are actively ill when possible. Keeping commonly touched household surfaces clean can also reduce the spread of infections.
Flu vaccination is an important preventive measure during pregnancy. It can help protect the mother and provide antibodies that offer protection to the baby during the early months of life. Discuss vaccination with your healthcare provider.
Colds and flu can be uncomfortable during pregnancy and breastfeeding, but most mild respiratory infections can be managed with appropriate supportive care. Pregnancy requires extra caution because influenza can sometimes lead to more serious complications, while breastfeeding mothers need to consider both their own treatment and medication safety for the baby.
Rest, hydration, good hygiene and timely medical advice are important. Most importantly, avoid assuming that every over-the-counter or herbal cold remedy is safe during pregnancy or breastfeeding. Always check with a qualified healthcare professional before starting a new medication, especially during pregnancy or while nursing.
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