Dr. Dawn M Zacharias MD

What is a persistent cough?It can be annoying to have a cough that lasts for more than a couple of weeks. A cough is considered chronic or persistent if it does not go away after four weeks in children and eight weeks in adults. However, most persistent coughs are due to colds, flu, infection, or...

For a long time, it has been part of cultural knowledge that exposure to sunlight can help treat eczema. Now, it is medically agreed that eczema can be treated using UV light. But does this mean that you should go out and get yourself sunburnt?To answer this question, first, you have to consider the...

The term allergy refers to the exaggerated immune response to certain foreign substances that normally may be harmless. These substances, which trigger an allergic response, are called allergens. The allergens may not trigger a similar response in everybody, and may remain harmless for others. Some...

Mold is a type of fungus that can cause severe allergic responses when the spores are inhaled. The fungi feeds on dead and decayed organic matter. They grow rapidly and produce small spores that spread through the wind. Molds are often found in cool and damp places, like basements, rotting leaves,...

It is very hard to diagnose lupus. Since two individuals can have different signs of lupus, doctors have a hard time diagnosing it and treating it effectively. To diagnose lupus, it can take a long time, which can be distracting to both the doctor and the affected person. The symptoms of lupus can...

What is poison ivy? Poison ivy (Toxicodendron radicans) is a popular plant known for causing rashes and skin irritation when one comes in contact with it.Poison ivy is a woody shrub or vine that is found in either shady or sunny locations. It can grow up to six feet tall as a shrub, or 150 feet tall...