Dr. Rana M Nasser MD

Doctors or physicians are categorized according to different factors including medical specialties and subspecialties. Most doctors specialize in a specific area of medicine. This article provides a summary of the different types of doctors in the medical field. AllergistsAllergists are also...

These are dendritic skin cells and contain Birbeck granules which is an organelle. In almost all the layers of the epidermis, langerhans cells are found. In the stratum spinosum they are the most prominent. Also, in the papillary dermis they occur. They are also found in the mucosa of the vaginal...

In a previous article I have written, I have explained certain measures to take when you get positive COVID-19 results. I understand that getting the news of a COVID-19 diagnosis can cause feelings of sadness. Upon talking with patients, I have heard about their sentiments. How they worry, how...

What is Zika virus?Zika virus (Flavivirus) isn`t a new virus, initially, it was found in Uganda and called after the place where the virus was first detected- Zika forest (1947). It is a mosquito-borne virus, which is transmitted from a particular species of infected insects (Aedes), the aggressive...

Cold sores are inflamed fluid-filled blisters, which appear in clusters on and around the mouth or lips. They can be seen when a person has a weakened immune system during fever, cold, or any other disease. Usually, cold sores are not harmful and should heal on their own within two to four weeks...

With over 2,118,790 people in the world having the COVID-19 virus, more than 535,270 cases have recovered. That means 25% of the confirmed cases. We can consider these statistics on a positive note, individuals infected with the virus can heal.But how? There are different ways on how to manage a...