Is there any OTC pain medication I can take two days after excel v laser treatment?

I had my entire face done with the excel v laser two days ago. I had significant swelling yesterday but I would say has gone down by about 50% today. However, I have sinus issues and am having horrible headaches. I was told not to take any pain medications for two weeks. Is there anything over the counter I can take that won't cause the swelling to return, or is that even the concern with taking them after this treatment? Thank you!