Should you take vitamin C or zinc when you are sick with a common cold or influenza? Immunologist Zachary Rubin explains ...

Levofloxacin-induced myopathy is a relatively under-recognized adverse effect. Here, we present a case of myopathy affecting the iliac and gluteal muscles caused by the administration of levofloxacin.

Chamomile tea is generally safe but can cause uncomfortable—and sometimes dangerous—side effects when consumed excessively. It's safe to stick to one to two cups a day.

Columnist Ben Hofmeister says he's extremely grateful for Ocrevus infusions, which have so far halted his MS disease activity.