Detailed information on allergic reactions to insect bites and stings.

Idiopathic environmental intolerance (IEI) is a set of symptoms caused by contact with some kinds of substances. Read on to learn more about causes, symptoms, triggers, and treatment.

Most allergic reactions are a result of an immune system that responds to a "false alarm."

The most common type of breast infection is lactational mastitis. This happens when a woman is breastfeeding. The nipples become cracked and sore, allowing bacteria from the baby's mouth to enter the ducts and rapidly multiply in the milk.

Detailed information on dental care for infants and children.

Diabetes insipidus occurs when your body doesn’t make enough antidiuretic hormone (ADH). Learn more about this rare disease that causes you to urinate often.

Erectile dysfunction (ED) or impotence means you can’t get an erection. It can also mean you aren't happy with the size or hardness of your erections, or how long your erections last. Read on to learn more about this condition.

Do cell phones interfere with pacemakers? Do ICDs need to be adjusted? Here are answers to these and other questions.

Lack of physical activity is a risk factor for many health problems. Read on to learn more about these risks, and how to get started being active.

It can sometimes be confusing whether to use heat or cold when treating sore muscles or an injury. Here are facts to keep in mind.

By creating images in the mind, you can reduce pain and symptoms linked to your condition.

The immune system works to keep germs out of the body and destroy any that get in. It is made up of a complex network of cells and organs.

IgA nephropathy is a chronic kidney disease. It progresses over 10 to 20 years, and can lead to end-stage renal disease. Read on to learn about causes, symptoms, diagnosis, and treatment.

Many families want their loved ones to die at home in their natural and most comfortable setting. Others don't feel they can emotionally handle end-of-life-care and death at home. Read on for a look at some of the important decisions to be made.

Indigestion (dyspepsia) is a pain or burning feeling in your upper belly or abdomen. It is common in adults.

To reduce your risk for infection, avoid people who are sick with contagious illnesses, including colds, the flu, measles, or chickenpox.

Detailed information on infections in children

Age, chronic diseases, and endometriosis are common factors for women. For men, they are STIs, toxic substances at work, and cigarette smoking.

Influenza, or flu, is a respiratory tract infection that spreads easily. It is caused by a virus.

An inguinal hernia is when part of your intestine pushes through a weak spot in your lower belly (abdominal) wall. This area is called the groin. The hernia creates a lump in your groin. Over time, the hernia may get bigger.