Medication while breastfeeding?

Lauren • Had my sweet girl 02/22/20 - 5 weeks early due to rare genetic disorder💗 Had my handsome man 09/30/22 - 3 weeks early due to low birth weight💙

What pain meds are safe? Is Excedrin migraine safe?

Also, how long does it take to get meds out of your system where it’s safe to pump again?