Some cold medicines are generally considered safe, while others might get into your breast milk and possibly affect your baby or decrease your milk supply.
The key is to look for single-ingredient medications when possible. For example, if you have a runny nose, try to find a medicine that only treats that symptom. Multi-symptom cold medicines often have ingredients that are less suitable for breastfeeding folks. Also, try to avoid decongestants, as they can impact your ability to make milk.
Another tip: time your medication use around your feeding schedule to minimize its presence in your breast milk.
And always remember that your healthcare provider is your best resource for this. They can give you guidance on the safest options based on your specific circumstances and the age and health of your baby.
Take care of yourself—you're doing a fantastic job, and remember, even superheroes get colds!