With flu-shot season in full swing and widespread anticipation of the HPV vaccine to prevent cervical cancer, a new University of Rochester study suggests that using common painkillers around the time of vaccination might not be a good idea.Researchers showed that certain nonsteroidal anti-inflammatory drugs (NSAIDs), also known as cyclooxygenase inhibitors, react with the immune system in such a way that might reduce the effectiveness of vaccines. [click link for full article]