Many medications are safe, but always check with your doctor or a lactation consultant first. Even over-the-counter stuff can affect your milk or baby.
LactMed (an online database) is great for checking drug safety while breastfeeding. Don’t just assume “natural” means safe, either—some herbs and supplements aren’t recommended.
When in doubt, ask a pro. You deserve pain relief, allergy meds, and functioning sinuses without stress.