Can You Breastfeed While You Have a Cold or Flu?

Yes — in most cases, you can and should continue breastfeeding with a cold or flu. For most common viral illnesses, breastfeeding is not only safe, it can actually help protect your baby.

If you're feeling miserable with a runny nose, cough, sore throat, body aches, or even influenza, it's completely understandable to worry about passing the illness to your baby. The good news is that current medical guidance from trusted health organizations such as the CDC and the American Academy of Pediatrics supports continuing breastfeeding in most cases.

Let's break down what you need to know about breastfeeding with a cold or flu.

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Is It Safe to Breastfeed With a Cold?

Yes. If you have a common cold, you can safely continue breastfeeding.

Colds are caused by viruses, and by the time you notice symptoms, your baby has already likely been exposed. However, here's the important part:

• Your body starts producing antibodies as soon as you become infected.
• Those protective antibodies pass directly to your baby through breast milk.
• This can help reduce your baby's risk of getting sick or make symptoms milder.

Breast milk contains immune factors like:

• Immunoglobulin A (IgA)
• White blood cells
• Antiviral and antibacterial components

These substances actively help protect your baby.

So when it comes to breastfeeding with a cold, continuing to nurse is usually beneficial — not harmful.

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What About Breastfeeding With the Flu?

Influenza (the flu) is more serious than a common cold. It can cause:

• High fever
• Severe body aches
• Extreme fatigue
• Headache
• Dry cough
• Chills

Even with the flu, most health authorities recommend continuing breastfeeding if you are able.

Breast milk does not transmit the flu virus. The virus spreads primarily through respiratory droplets — coughing, sneezing, or close contact — not through milk.

If you're experiencing severe symptoms and aren't sure whether it's a cold or the flu, consider using a free symptom checker for Influenza (Flu) to get personalized guidance on your symptoms and whether you should seek immediate medical attention — especially important since early treatment with antivirals can make a significant difference.

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How to Breastfeed Safely While Sick

If you're breastfeeding with a cold or flu, take simple precautions to reduce the chance of spreading germs:

• Wash your hands frequently with soap and water.
• Wear a mask while nursing if you have a cough or fever.
• Cover coughs and sneezes with a tissue or your elbow.
• Clean commonly touched surfaces regularly.
• Avoid kissing your baby on the face while symptomatic.

If you feel too sick to nurse directly, you can:

• Pump or hand-express milk.
• Have a healthy caregiver feed your baby expressed milk.
• Continue pumping regularly to maintain supply.

The key is keeping breast milk flowing, even if you're temporarily unable to nurse at the breast.

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When Should You Be More Cautious?

While most colds and flu cases allow continued breastfeeding, certain situations require medical guidance.

Speak to a doctor immediately if you have:

• Difficulty breathing
• Chest pain
• Severe dehydration
• Persistent high fever (over 103°F or 39.4°C)
• Confusion
• Symptoms that worsen instead of improve
• A baby under 3 months old who develops a fever

Infants under 6 months are at higher risk for flu complications. If your baby shows signs of illness such as:

• Fever
• Poor feeding
• Lethargy
• Trouble breathing

Seek medical care promptly.

Breastfeeding is usually still encouraged — but your doctor may adjust treatment plans depending on the situation.

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Can Cold and Flu Medications Affect Breastfeeding?

Many medications are compatible with breastfeeding, but not all are ideal.

Generally considered safe (when used as directed):

• Acetaminophen (Tylenol)
• Ibuprofen
• Most flu antivirals (such as oseltamivir/Tamiflu — consult your doctor)

Use caution with:

• Decongestants containing pseudoephedrine (may reduce milk supply)
• Combination cold formulas
• Codeine-containing cough medicines

Always:

• Read medication labels carefully.
• Avoid multi-symptom formulas unless necessary.
• Ask your doctor or pharmacist before starting any new medication.

Never assume "over-the-counter" automatically means safe for breastfeeding.

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Will My Baby Definitely Get Sick?

Not necessarily.

Breastfeeding with a cold often lowers the severity of illness in babies. Some babies exposed to maternal illness:

• Do not get sick at all.
• Develop only mild symptoms.
• Recover quickly.

Breast milk actively supports your baby's developing immune system.

However, babies can still get sick. Watch for:

• Fever
• Irritability
• Changes in feeding patterns
• Congestion
• Decreased wet diapers

If you're unsure whether your symptoms are a cold or flu — or if they're severe — consider using a trusted symptom assessment tool and speak to a healthcare professional.

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Should You Ever Stop Breastfeeding Because of Illness?

In most common respiratory illnesses — no.

Breastfeeding is usually stopped only in rare situations involving:

• Certain serious infections (very uncommon)
• Specific medications that are not compatible with breastfeeding
• Severe maternal illness requiring intensive care

These cases are uncommon. For colds and flu, stopping breastfeeding is generally not recommended.

If you must temporarily separate from your baby due to severe illness:

• Continue pumping to maintain supply.
• Resume direct breastfeeding as soon as you're able.

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How Breastfeeding Protects Your Baby

Breastfeeding with a cold may feel difficult physically, but it provides powerful protection.

Breast milk:

• Adjusts in real time to your infection.
• Contains antibodies specific to your illness.
• Helps reduce inflammation.
• Supports gut health and immunity.

Some research suggests breastfed babies have lower rates of respiratory infections overall.

So even when you're exhausted, remember that nursing is actively helping your baby.

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Taking Care of Yourself Matters Too

You cannot pour from an empty cup.

If you're breastfeeding with a cold or flu, prioritize:

• Rest whenever possible.
• Staying hydrated.
• Eating small, nourishing meals.
• Asking for help with household tasks.
• Sleeping when your baby sleeps.

Fatigue can affect milk supply temporarily. This usually improves as you recover.

If you experience a sudden drop in milk supply, speak to a lactation consultant or doctor.

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When to Speak to a Doctor

You should contact a healthcare professional if:

• Your symptoms are severe or worsening.
• You suspect influenza and are within 48 hours of symptom onset (antivirals work best early).
• You have underlying health conditions (asthma, diabetes, heart disease).
• Your baby is very young or medically fragile.
• You are unsure whether a medication is safe during breastfeeding.

Anything that feels potentially life-threatening — for you or your baby — requires urgent medical care. Do not delay seeking help.

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The Bottom Line

Breastfeeding with a cold is not only safe — it's often beneficial.
Breastfeeding with the flu is usually recommended as well, with precautions.

In most cases:

• Your milk does not spread respiratory viruses.
• Your body passes protective antibodies to your baby.
• Continuing to nurse supports your baby's immune system.

Take practical steps to reduce germ spread, rest as much as possible, and monitor both your symptoms and your baby's.

If you're unsure whether you have influenza or are concerned about symptom severity, consider checking your symptoms with Ubie's free AI-powered symptom checker for Influenza (Flu) to help determine your next steps and whether you need immediate medical care.

Breastfeeding during illness can be challenging — but in most situations, it remains one of the best ways to protect your baby while you recover.