With flu vaccination season in full swing, researchers caution that use of many common pain killers — Advil, Tylenol, aspirin — at the time of injection may blunt the effect of the shot and have a negative effect on the immune system.
With flu vaccination season in full swing, researchers caution that use of many common pain killers — Advil, Tylenol, aspirin — at the time of injection may blunt the effect of the shot and have a negative effect on the immune system.