Allergic reactions to the flu shot are very rare. If you do experience one, you may have symptoms such as trouble breathing, wheezing, skin rash or hives, and rapid heartbeat. Common side effects ...

Scientists at Stanford are developing a painless, topical vaccine using a common skin bacterium to trigger immunity.

Discover top techniques to manage flu shot side effects, from quick pain relief to expert-backed comfort measures that make your vaccination experience better.

The bottom line is that the flu shot is safe for almost everyone six months old or older. Your doctor may have you skip it if you've ever had a severe allergic reaction to the vaccine or if you ...