The short answer is “Some medication you can take, but others you probably shouldn’t.”

Overall, the goal should be to adopt the ideal diet, lifestyle and habits/routines to minimise your hay fever, as you may not need medication.

Even if you suffer from severe hay fever, the more you can reduce your symptoms with lifestyle changes, the less medication you will need for relief.

Often a saline nasal cleansing spray together with lots of vitamin C, combined with dust and dust mite reduction in the home can suffice for breastfeeding mothers with mild to moderate hay fever.

Failing that, there are several types of hay fever medication to choose from, all of which you should thoroughly research in addition to seeking medical advice from your doctor and pharmacist.


New non-drowsy antihistamines are sometimes used under medical advice by some expectant mothers.

Compared to older generation antihistamines much less of the drug is absorbed into your bloodstream. Antihistamine nasal sprays go direct to the site of suffering, which means even less of the drug remains in the body.

Older drowsy-type antihistamines are less ideal as they penetrate the blood-brain barrier, leaving significantly more of the drug in your system than newer versions.

If your baby was born early, had a low birth weight, or has any kind of medical condition you should seek specialist medical advice on any medication you are considering taking.


Pseudoephedrine is known to decrease milk supply, hence some healthcare professionals may advise against using decongestantswhile breastfeeding, as well as antihistamines that contain this decongestant.

As is commonly understood, decongestants need to be used with caution and only for a few days at a time even under normal circumstances, so be sure to consult your doctor before taking this type of medication. Decongestants are generally not recommended for pregnant or breastfeeding mothers.


Intranasal and inhaled corticosteroids are considered safer than oral corticosteroids, again because localised medication leaves much less trace of drugs in the body than medication that goes via the gut.

Immunotherapy Injections

The proteins contained in allergy injections to prevent severe hay fever are not likely to enter breast milk. This option is sometimes approved for breastfeeding mothers.