“Is it OK to give my baby Tylenol for teething every night?”

First thing to know is that teething does hurt. Also it occurs mostly overnight when sleep Shifts the bodies energy from day time activities like ambulating and other physical activities. So the focus shifts from the above energy needs to activity like tooth eruptions. The usual progression for infants is bottom central incisors then top central incisors And then the lateral incisors. Since it is painful meds like Tylenol can be useful. The dosage should be minimal at best and may be less needed with the use of topical Meds like baby oragel.

Yes and No. Check with your pediatrician to ensure nothing else serious is going on if your baby requires it for a week or more.

Yes-as long as you are following the dosing instruction based on the baby's age and weight that are on the packaing.