Tylenol is fine just don’t exceed dose. Idk about you but hospital gave me tons of Tylenol after giving birth while breastfeeding they said it was safe.
Try to take it after you finish a feed to try and prevent baby from receiving milk during the peak of the dose. Do not exceed the recommended dose. It's safe to breastfeed while taking tylenol. I checked with my pharmacists when I was sick.
Honey and garlic ferment is what I use every year for colds.