My doc has always told me that you CAN take tylenol with ibu. Which is essentially what you are doing. Advil is ibu. I wouldnt take them all together right at the same time, but that is just me. Maybe take them an hour apart. Be careful with the ibu though I think there is a max you can take in a day. check it out.
Yes you can take the Advil (ibuprofen) with the tylenol 3. You can take 4 advil at once which totals 800mg. The max for ibuprofen is 3200mg/day (a total of 16 pills of 200mg/each). I was taking 12 advil and 8 tylenol per day before I got on prescription meds. Of course its not good to do for very long but for flare ups it's alright.