Marcelo Ernesto Zappi M.D.

Chicken pox, also known as varicella, is a very contagious disease that is caused by presence of the varicella zoster virus (VZV). The most typical and characteristic sign of chicken pox is itchy bright red blisters all over the body. The varicella vaccine protects about 70-90% of the people who get...

According to a new study, people who apply sunscreen regularly and vigilantly may have more painful and damaging sunburns. In this study, the researchers collected data regarding the different methods of shielding the sun, and the effectiveness of each of these methods. Data was collected from more...

Getting to the root of dandruffComplete treatment of dandruff has been an elusive dream for many people. Over-the-counter shampoos and scalp treatments are the most common approach for controlling dandruff. “But these methods are beneficial for those who have mild forms of dandruff and not severe...

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,...

PurpuraPurpura refers to purple-colored spots that are usually seen on the skin, including mucous membranes and other organs. It is also called skin hemorrhages or blood spots.Purpura is usually recognized when there is pooling of blood under the skin due to ruptured small blood vessels. The size of...

What is dry skin?Dry skin is one of the most common skin problems, and can cause discomfort and embarrassment. Dry skin may look red and flaky and feel tight or painful. It can also cause intense itching, which can disrupt sleep. Often, dry skin is a symptom of some underlying medical issue that...