Cold sores (also called fever blisters) are a common problem in children. They usually appear outside the mouth. Cold sores often begin as 1 or a cluster of blisters, which then crust or scab over. They can spread through direct contact.

Pinworms are tiny white worms that are visible to the naked eye. They infect the intestines but are generally harmless. Your child can easily be treated with medicine.

Lymph nodes can swell due to illness or infection. They can also swell for unknown reasons. In most cases, swollen lymph nodes (also called swollen glands) aren't a serious problem. They usually return to their original size with no treatment or when the illness or infection has passed.

Tuberculosis (TB) is a serious disease caused by germs (bacteria) that can spread from person to person through the air. Here is information about TB, how it's treated, and ways to help prevent its spread.

Learn about central line infections, how hospitals are trying to prevent them, and how to treat an infection if one occurs.

Bird flu is a serious illness that affects the lungs. Currently, it mainly infects birds. This sheet answers some of the questions you may have about bird flu.

Bacteria that resist treatment with more than one antibiotic are called multidrug-resistant organisms (MDROs). MDROs mainly affect people in hospitals and long-term care facilities. But they are also spreading among healthy children and adults. Read on to learn more.

Falling is not something you want to think about. But it can make a big difference to plan ahead. If you're prepared, you'll know how to get help. And you'll be less likely to panic if you fall. This means you'll be able to do what's needed to get help right away.

Staying active is 1 of the best things you can do to prevent falls. Start easy. Slowly work up to doing more.

Certain types of exercises may help make you less likely to fall. Here are ways to improve balance, increase flexibility, and boost strength and staying power.