Staph or staphylococcus bacteria often live on the skin or nose of healthy people, causing no harm. However, staph can cause infections that can be serious. MRSA, or methicillin-resistant staphylococcus aureus, is an antibiotic resistant staph bacteria that is worth avoiding.

You can get rid of a dry cough naturally, particularly when a dry throat stems from a common cold or allergies. A dry cough may be a symptom of an underlying medical condition, so it may return until treated for the medical condition.

The Vicks V400 Cool Mist Humidifier is an impeller humidifier and differs from a standard evaporation device. Evaporation humidifiers use a fan to blow air through a saturated filter. Impeller humidifiers do not have a fan, but instead use a rotating disk to break water into droplets.

Exercise plays an important role in keeping your body healthy and helping reduce your risks for diseases. However, exercise does not guarantee immunity, and illnesses such as the common cold or other bacterial or viral infections can often develop and get in the way of your regular exercise routine.

Nutritional yeast is a yeast extract made as a nutritional supplement, food additive and flavoring. It is an excellent source of nutrients, especially protein. Nutritional yeast is quite different from brewer’s yeast, baker’s yeast and pathogenic, or disease causing, yeast.

Shingles is an intensely painful viral condition that is caused by the varicella-zoster virus, a member of the herpes virus family and the same virus that causes chickenpox.

Stomach flu is a common name for what doctors call viral gastroenteritis, according to the staff at MayoClinic.com. Symptoms of stomach flu include watery diarrhea, abdominal cramps, sometimes fever and—of course—vomiting.

Tannins are plant compounds that display a variety of properties, some of which are beneficial and others that lead to problems. Tannins cause red wine and black tea to be astringent and bitter, which may affect your saliva glands and trigger jaw pain.

Candidiasis, or the infection caused by Candida albicans yeast, can be treated using anti-fungal drugs or herbs with anti-fungal properties. These treatments are toxic to the Candida fungus. The death of multiple Candida yeasts releases proteins and endotoxins into the lymphatic stream of the host.

Malaria is an infectious disease caused by a parasite of the genus Plasmodium and transmitted by mosquitoes.

Symptoms of lightheadedness and fatigue during a cold are about as common as the cold itself. While some cold-sufferers may experience more coughing and others more sinus pain, it seems that feeling tired and lightheaded are constant features to some degree.

Bouts of influenza are not only miserable; they threaten the lives of elderly people, young children and other vulnerable populations. The respiratory virus causes problems ranging from body aches and fatigue to fever and coughing.