
Getting the flu or COVID while breastfeeding can feel like a double burden: you are trying to recover while worrying about your baby and your milk supply. The reassuring truth is that, in most situations, continuing to breastfeed is both safe and beneficial. Breast milk is more than calories—it carries immune factors that can help your baby handle exposures, and it keeps hydration and nutrition steady when routines get disrupted.
The bigger risk is usually not the milk itself, but close-contact spread through breathing, coughing, and hands. With a few focused precautions, you can keep nursing while lowering your baby’s chance of infection. Just as important, you can protect your supply by keeping milk removal consistent, even if you need to switch temporarily to pumping. This article lays out practical steps for feeding, medication choices, and clear signs that you or your baby need medical care.
Key Insights for Breastfeeding Through Illness
- Continuing to breastfeed is usually recommended with flu or COVID, because milk can provide immune support and steady hydration.
- Infection risk mainly comes from respiratory droplets and contaminated hands, so masking, handwashing, and pump hygiene matter most.
- Early treatment for flu or COVID may be appropriate while breastfeeding; ask promptly if you are high risk or symptoms are worsening.
- Avoid decongestants that commonly reduce milk supply unless you truly need them, especially early postpartum or if supply is already fragile.
- If you are too sick to nurse, express milk on a consistent schedule and have a healthy caregiver feed your baby when possible.
Table of Contents
- Can you keep breastfeeding
- How flu and COVID spread and precautions
- Medications and symptom relief while nursing
- Maintaining supply when you feel awful
- Protecting baby and monitoring symptoms
- When to pause direct nursing and get help
Can you keep breastfeeding
In most cases, yes—continuing to breastfeed is recommended when you have the flu or COVID. This guidance rests on two practical points. First, breast milk itself is generally not considered the main route of transmission for these respiratory viruses. Second, breastfeeding keeps your baby’s intake stable at a time when both of you may be sleeping more irregularly, feeding more often, or struggling with appetite.
If you are sick, your body is producing an immune response. Breast milk can contain antibodies and other immune factors that reflect that response. From a parent’s perspective, the value is not that milk “prevents” infection with certainty, but that it can support your baby’s defenses while providing a familiar, easily digested food. That matters most for young infants, who have limited reserves and can become dehydrated quickly if they feed poorly.
A common fear is, “If I nurse, I am giving my baby the virus.” The more accurate frame is, “I am already near my baby, so I need to reduce the breathing and touch pathways that spread the virus.” In other words, breastfeeding can continue, but hygiene and masking become the core protective strategy.
There are also situations where breastfeeding may look different for a few days while still continuing:
- If you are too weak to sit up safely, you can feed expressed milk until you feel steadier.
- If coughing is intense, paced feeding and short breaks can help you stay comfortable and protect latch.
- If you are hospitalized, you may need pumping support and help coordinating milk storage and infant feeding.
It is also normal for supply to wobble during illness. Fever, dehydration, reduced calorie intake, and longer stretches between milk removal can temporarily lower output. That drop is usually reversible when you recover and resume consistent milk removal.
The simplest guiding principle is this: if you are well enough to safely hold your baby and feed, breastfeeding can usually continue with precautions. If you are not well enough for direct nursing, your next best step is consistent expression so your baby still receives milk and your supply stays protected.
How flu and COVID spread and precautions
When a breastfeeding parent has flu or COVID, the goal is to keep the benefits of close contact and breast milk while reducing the most likely routes of spread. Both illnesses are primarily transmitted through respiratory particles and droplets that leave the nose and mouth during breathing, talking, coughing, and sneezing. Hands also matter, because respiratory secretions can contaminate fingers and then reach your baby’s eyes, nose, or mouth during routine care.
A practical precautions checklist is more effective than trying to be “perfect” all day.
Before each feeding or pump session:
- Wash hands with soap and water, especially after blowing your nose, coughing, using the bathroom, or handling tissues.
- If soap and water are not available, use an alcohol-based hand sanitizer and let it dry fully.
During close contact:
- Consider wearing a well-fitting mask while feeding at the breast or holding your baby close, especially when you are actively coughing or in the first few days of symptoms.
- Try to avoid coughing directly toward your baby’s face. If you need to cough, turn away and use a tissue, then clean your hands.
Pump and bottle hygiene (if expressing milk):
- Clean and sanitize pump parts and feeding items according to the manufacturer’s instructions.
- Use clean surfaces for pump assembly and milk storage.
- If you are very ill or sleep-deprived, set up a simple “clean station” so you are not improvising at every session.
If a healthy caregiver is available:
- Consider having that person do non-feeding care (diaper changes, burping, soothing, baths) while you focus on feeding and rest.
- If you are expressing milk, the caregiver can feed the baby, which reduces close face-to-face exposure during your most symptomatic period.
Room setup can also help:
- Open windows briefly when weather allows, or increase airflow with a fan that does not blow directly from you toward the baby.
- Keep high-touch surfaces simple and wipe them regularly (phone, pump controls, bedside table, door handles).
If both you and your baby are already sick with the same illness, precautions can be less complicated, but hygiene still matters to prevent secondary infections and to protect other household members. The main point is that breastfeeding does not require isolation from your baby. It requires smart layering: clean hands, thoughtful masking, and careful pump and bottle hygiene when needed.
Medications and symptom relief while nursing
When you are breastfeeding, the safest medication plan is the one that treats the illness effectively while avoiding products that unnecessarily affect milk supply or your baby’s alertness. Two concepts help: most medications transfer into milk in small amounts, and many common treatments are compatible with breastfeeding. Still, choices matter—especially with combination cold remedies.
Flu and COVID treatments
- For influenza, antiviral treatment may be recommended for some people, especially if symptoms are significant or you are at higher risk of complications. Some influenza antivirals have lactation data suggesting low milk transfer.
- For COVID, antiviral treatment may be recommended depending on your risk profile, symptom severity, and timing. If a clinician offers treatment, breastfeeding status should be part of the discussion, but it does not automatically exclude you from care.
Symptom relief that is commonly compatible with breastfeeding
- Pain and fever control often starts with acetaminophen or ibuprofen, taken as directed. Treating fever and aches is not just comfort; it supports hydration and sleep.
- For sore throat, warm fluids, honey-based throat preparations for adults, salt-water gargles, and lozenges can reduce irritation without affecting supply.
- For cough, simple measures like humidified air, warm drinks, and honey for adults can help. If you choose an over-the-counter cough medicine, avoid multi-symptom products when you can, so you are not taking unnecessary ingredients.
Decongestants and supply
A major supply pitfall is oral decongestants, especially pseudoephedrine. Even a single dose can reduce milk production in some people, and repeated use can interfere more noticeably. This matters most:
- in the first weeks postpartum,
- if your baby is small or feeds frequently,
- or if you are already worried about output.
If congestion is severe, consider stepping up non-drug options first: saline spray, steam, humidifier, or shower. If you do use a decongestant, use the lowest effective dose for the shortest time and monitor supply closely.
Two additional safety checks
- Avoid products that make you overly sleepy if you are caring for a newborn. Sedation can increase safety risks during feeding and handling.
- Watch combination products labeled “cold and flu” or “multi-symptom,” which can include decongestants, antihistamines, cough suppressants, and pain relievers in one dose—making it easy to double-dose or choose an ingredient that is not ideal for supply.
When in doubt, choose single-ingredient medications and ask a clinician or pharmacist to help you match the product to your specific symptoms and breastfeeding situation.
Maintaining supply when you feel awful
Supply is protected by one core mechanism: regular milk removal. When you are sick, the risk is not that your body “forgets” how to make milk; it is that you feed less often, shorten sessions, or skip pumping because you are exhausted, congested, or sleeping more. The good news is that a short dip is common and usually reversible if you keep milk moving.
A realistic sick-day supply plan focuses on minimum effective effort.
Keep a baseline removal schedule
- If your baby is nursing, aim to keep the usual frequency as closely as you can, even if some sessions are shorter.
- If your baby is sleeping longer or you are too sick to nurse reliably, pump or hand express to match your baby’s normal pattern as best you can.
- If you can only do “bare minimum” for a day, protect the highest-impact sessions: morning, midday, evening, and one overnight if you are early postpartum or supply is fragile.
Choose the least demanding method
- Some parents do better with direct nursing because it is faster and requires fewer steps.
- Others do better pumping because they can rest while a caregiver feeds the baby.
- Hand expression can be surprisingly effective for short relief, especially if you are too congested to tolerate a full pumping setup.
Hydration and calories matter more than perfection
Illness often reduces appetite, but milk production requires fluid and energy. You do not need elaborate meals—just consistent intake.
- Drink to thirst, and add an electrolyte drink or broth if you are sweating, feverish, or not eating much.
- Aim for small, frequent snacks with protein: yogurt, eggs, soup with chicken, nut butter on toast, or smoothies.
- If nausea is a problem, treat it like a ladder: sips of fluid, then bland carbs, then add protein.
Protect your breasts from secondary problems
When you are sick, skipped sessions and longer stretches can trigger engorgement, clogs, or mastitis symptoms.
- If a breast feels overly full or tender, add a brief expression session rather than pushing through.
- Use gentle warmth before feeding and gentle cold afterward if swelling is present.
- Avoid aggressive “deep massage,” which can worsen tissue irritation.
If supply drops, think in 48-hour blocks
A day or two of lower output does not predict your long-term supply. Once you are improving, the most reliable way to rebound is consistent milk removal, adequate fluids, and enough calories to support recovery. If you are three to five days into illness and supply is still falling, or you have significant breast pain, seek lactation support early rather than waiting for it to become an emergency.
Protecting baby and monitoring symptoms
Your baby’s risk is shaped by age, underlying health, and exposure intensity. Most infants do well with mild viral illness, but very young babies can become dehydrated or develop breathing difficulty faster than older children. The practical goal is twofold: reduce exposure where you can, and watch for early signs that your baby needs medical evaluation.
Protection strategies that fit real life
- Keep feeding as normal as possible. Frequent feeding supports hydration and comfort.
- Use “hands first” hygiene consistently: before feeding, after coughing, after tissues, after diapering.
- Mask during close face-to-face contact when you are actively symptomatic, especially if you are coughing a lot.
- Reduce extra face contact when possible (for example, kissing baby’s face when you are acutely ill).
- Let a healthy caregiver handle non-feeding tasks if available, so your baby has fewer close exposures.
Feeding adjustments if your baby seems congested or fussy
- Shorter, more frequent feeds can be easier than long sessions.
- If nasal congestion interferes with feeding, consider gentle nasal clearance before feeds so your baby can breathe and suck more comfortably.
- Watch diaper output. Wet diapers are a practical hydration marker when intake is hard to quantify.
Signs your baby may need prompt medical advice
Contact a pediatric clinician urgently if your baby:
- has breathing that looks labored (ribs pulling in, flaring nostrils, pauses, or persistent fast breathing),
- is unusually sleepy, difficult to wake for feeds, or significantly weaker than normal,
- has poor feeding with fewer wet diapers than usual,
- has a fever depending on age and local guidance (especially in very young infants),
- shows signs of dehydration (dry mouth, no tears when crying, markedly fewer wet diapers),
- develops a bluish color around lips or face, or seems limp.
If your baby is sick, breastfeeding can be even more valuable because it provides fluids, comfort, and easily digested nutrition. If direct nursing becomes difficult, expressed milk is an excellent fallback. If both direct nursing and bottle feeding are challenging, seek help early rather than waiting for dehydration signs to escalate.
Also monitor your own ability to care safely. When you are very ill, the risk is not only infection—it is exhaustion and impaired alertness. If possible, enlist support so you can rest, keep up with fluids, and maintain feeding without pushing beyond what is safe.
When to pause direct nursing and get help
Most breastfeeding parents can continue nursing through flu or COVID, but there are times when direct breastfeeding should pause temporarily—not because milk is unsafe, but because your condition makes close contact or handling unsafe. In these moments, the priority becomes expressing milk safely and getting medical care when needed.
Reasons you might temporarily switch from direct nursing to expressed milk
- You feel too weak or dizzy to hold your baby safely.
- Your cough is severe enough that feeding feels disruptive or unsafe.
- You are hospitalized, on oxygen support, or otherwise unable to room-in safely.
- You are taking a medication plan that makes you unusually sleepy, and you lack support for safe infant handling.
If you need to pause direct nursing, you can still maintain supply with a straightforward “protect the pattern” approach:
- Express milk on your baby’s usual schedule as closely as you can.
- If you cannot match every feed, aim for regular sessions across the day and night rather than long gaps.
- Use the easiest effective method: pump, hand expression, or a combination.
- Ask for lactation support early if you are hospitalized. The right flange size and a comfortable plan can make the difference between a manageable week and a major supply drop.
Feeding expressed milk safely
- Have a healthy caregiver feed the baby when possible.
- Keep pump parts and feeding equipment clean and dry between uses.
- If you are coughing heavily, mask during pumping and avoid coughing over open milk containers.
When to seek care for yourself
Flu and COVID can worsen quickly in some people, especially those with asthma, pregnancy or recent postpartum status, immune suppression, obesity, diabetes, or heart and lung conditions. Seek urgent medical care if you have:
- shortness of breath, chest pain, or bluish discoloration,
- confusion, fainting, or severe weakness,
- dehydration you cannot correct (minimal urination, inability to keep fluids down),
- fever that remains high or symptoms that are rapidly worsening,
- new breast redness, significant breast pain, or flu-like worsening after breast engorgement.
Finally, plan for the return to direct nursing. If your baby has been bottle-fed expressed milk for several days, you can often transition back with skin-to-skin time, calm attempts when your baby is relaxed, and patient repetition. If latch issues appear, treat it as a support problem, not a failure. A lactation professional can help you bridge that gap quickly.
References
- COVID-19 and Breastfeeding | Breastfeeding special circumstances | CDC 2025 (Guidance). ([CDC][1])
- Influenza (Flu) and Breastfeeding | Breastfeeding special circumstances | CDC 2025 (Guidance). ([CDC][2])
- Oseltamivir – Drugs and Lactation Database (LactMed®) – NCBI Bookshelf 2024 (Drug Monograph). ([NCBI][3])
- Nirmatrelvir – Drugs and Lactation Database (LactMed®) – NCBI Bookshelf 2025 (Drug Monograph). ([NCBI][4])
- Pseudoephedrine – Drugs and Lactation Database (LactMed®) – NCBI Bookshelf 2025 (Drug Monograph). ([NCBI][5])
Disclaimer
This article is for general educational purposes and does not provide medical advice, diagnosis, or treatment. Recommendations for breastfeeding during illness and medication safety can vary based on your baby’s age, your health conditions, and the severity of symptoms. Seek urgent care if you have shortness of breath, chest pain, confusion, fainting, severe dehydration, rapidly worsening symptoms, or concerning breast pain with redness or swelling. Contact a pediatric clinician promptly if your baby has breathing difficulty, poor feeding, signs of dehydration, unusual sleepiness, or fever concerns based on age and local guidance.
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