Infection of the breast, a condition called mastitis, can occur when microbes enter cracks in the skin and colonize within a milk duct, usually but not always at a time in life when the mother is nursing. Mastitis can be caused by bacteria, viruses, and fungal microbes, and can affect one or both of the breasts.

Coughing up phlegm in the morning can occur with a variety of short- and long-term conditions affecting the lungs. People with a productive cough -- meaning one that leads to expulsion of phlegm, or sputum -- often report their cough is worst in the morning.

Learn how to effectively use a humidifier for a cough, understand its benefits and limitations, and discover essential tips for proper maintenance and safe operation.

The strain and dosage of probiotics you need to take while using antibiotics depends on the reason you're using probiotics. Common side effects of antibiotic usage include diarrhea and yeast infections caused by an overgrowth of Candida albicans.

If your toddler loves to swim or play in the water but has a cold and cough, you may wonder if it's still OK to head for the pool. A cold is one of the most frequent illnesses in children. According to the American Academy of Pediatrics, most little ones have had 8 to 10 colds by the time they reach age 2.

Lymphedema is a specific type of swelling that involves the lymphatic system and lymph nodes. Lymphedema in the foot can be reversible, which is curable, or irreversible, which is incurable. Irreversible lymphedema can be treated, but it requires lifelong maintenance.

From the moment of entry into this world, bacteria surround you. They are abundant in all environments. Bacteria live on your skin, in your intestine and in many other body locations. The overwhelming majority of bacteria do not cause disease.

Antibiotics are medications prescribed by your physician to help fight off foreign bacteria that can make you ill. Not only do harmful bacteria make you sick, but they are also easily spreadable to others.

A gum infection, or periodontitis, occurs when bacteria present in dental plaque spread to the gums. MayoClinic.com notes that it is usually caused by poor oral hygiene. Periodontitis can lead to a gingival abscess, which occurs when pus caused by the disintegration of nerves and blood vessels forms in your gums.

Consider taking the homeopathic preparation Oscillococcinum next time you start feeling achy, with fever and chills. An alternative medicine especially made for treating symptoms of flu, Oscillococcinum is made by Boiron, the well-respected, FDA-approved French homeopathic pharmacy.

Staph infections are caused by staphylococcus bacteria which are usually found on your skin or the inside of your nose. If staph bacteria infect your bloodstream, urinary tract, lungs or heart, it can turn fatal.

If your child has a tickly cough, it is most likely the result of an allergic reaction to an airborne substance. A common symptom of allergies in children is throat irritation that feels like a tickle in the back of the throat.