Dr. Kathryn O\'Reilly, MD, PhD

Melanoma is an aggressive form of skin cancer that starts in the melanocytes, which are cells that produce pigments. It usually begins in tissues that are heavily pigmented, like moles and birthmarks. This form of skin cancer is often found in the chest, back, and palm, and in some rare cases, it...

What Is Heat Rash?Heat rash is a condition of the skin that results from a blockage of the sweat ducts. This condition can be attributed mostly to excess sweating, and is therefore very common in hot and humid areas. All people can be affected by heat rash, especially if they are in conditions that...

A skin biopsy is a medical procedure which involves taking a skin tissue sample, processing it, and then examining it under a powerful microscope. Different methods exist for performing this procedure depending on the location and size of the skin abnormality. Any part of your skin that shows some...

Unlike what most people think, skin cancer, like most other cancers, is fatal. Skin cancer is the most common form of cancer in many countries, including the United States. More than 5 million skin cancer cases come up each year. Over 3 million of these cases are found in the United States. In fact,...

The skin is a reflection of an individual’s internal health. Radiant, beautiful skin indicates proper care, healthy diet, and sufficient hydration. Skin invaded with blackheads or whiteheads shows the existence of an oxidative damage, hormonal imbalance, and poor nutrition.Causes of AcneAcne is...

What is it?Recurrent herpes simplex labialis is a mouth infection that is caused by the herpes simplex virus. It is a contagious and common infection that can easily be passed on. Also known as oral herpes, recurrent herpes simplex labialis causes sores and blisters on the lips, tongue, mouth, and...