You poor thing! I've had 4 wisdom teeth out recently and the pain was unbearable
Nurofen plus(or any antiinflammatory) is not advisable while bf on a regular basis. Bub's kidneys are not able to deal with them that early. If you only planning to take for a couple of days, I think you should be right. Also depends how often you bf. Nurofen takes 6-8 hours to clear out of your system. Could you express? then maybe take it AFTER the feed and express for next feed. That way you have a few hours for your body to clear the nurofen.
Consider Panadeine 15 instead (more codeine + paracetamol) clears in 4-6 hours. Just a suggestion. I tried medijel with my wisdoms. It has an anaesthetic to numb the area. HTH.