A puncture wound occurs when a sharp object penetrates the skin barrier. Nails are the culprit in 90 percent of puncture wounds, most often on the bottom of the foot, according to FamilyPracticeNotebook.com.

Chest congestion is often a symptom of an upper respiratory infection. Air flows to your lungs through bronchial tubes, which contain membranes that produce mucus to protect against irritation. If your bronchial tubes become inflamed, the membranes produce excess mucus, which causes chest congestion.

An appendectomy is surgery performed to remove an inflamed or infected appendix. It's a common surgery and mostly goes off without a hitch. Sometimes, however, there may be appendectomy complications. Removal of the appendix may create other problems requiring immediate attention.

A cool mist humidifier is used to treat nasal and chest congestion from the common cold, allergies or a sinus infection, according to MayoClinic.com.

The metatarsal bones are the bones between your ankle and toes and are susceptible to such injuries as stress fractures. Depending on the severity of your injury, it may take a few days to six weeks before you can return to your sport.

Nystatin is a prescription antifungal medication used to treat several different types of yeast infections. Nystatin is available for use with infants as a liquid oral suspension or a cream.

In 2006, emergency departments across the United States treated more than 119 million cases.

Humidifiers are used to help ease nasal and chest congestion due to allergies or the common cold, but if not maintained properly, they can lead to health complications, according to MayoClinic.com. Humidifiers create extra moisture in the air and can encourage the growth of mold and mildew.

Herpes zoster infection, or shingles, is the reactivation of the same virus that causes chickenpox, also known as varicella-zoster. Shingles is characterized by a painful blistering rash that can appear anywhere on the body, however is more common on the abdomen, chest or near the eye.

Mucus is a slippery substance secreted by -- and covering -- the mucus membranes that line your respiratory tract. Glands in your nose, sinuses and throat generate mucus, which is helpful in cleansing and moisturizing your nasal passages. According to MayoClinic.

Tamiflu, also known by its generic name, oseltamivir, is an antiviral drug used for the treatment of influenza. It works by slowing down the rate at which viruses infect cells. However, in common with other antivirals, Tamiflu does not eliminate the flu virus from the body, rather it slows its progress.

The Centers for Disease Control and Prevention (CDC) recommend vaccination as the first step to reduce your risk of infection with seasonal and pandemic flu. While there are many pros to getting vaccinated, there are also some cons you may wish to consider.