Dr. Mac Lee Machan M.D.

What are cold sores?Cold sores or fever blisters are a very common perioral condition caused by the herpes simplex virus (HSV). There are two types of herpes simplex virus. Type 1 usually causes cold sores, although in some cases, the cold sores can also be caused by type 2. It is usually...

Dandruff is one of the most embarrassing skin conditions marked by itching and flaking in the scalp. This skin condition, though difficult to treat, can be controlled to a large extent. Under normal conditions, new skin cells replace the old and worn out cells that then fall off. In some people, the...

Lisa Ginn, MD, a cosmetic dermatologist in Chevy Chase, has a few tips to follow to achieve beauty.Wash your faceNever go to bed without cleaning the face is the first rule to be followed for glowing skin. Morning make up can stretch the pores in the skin and give an aging look to the skin. Using an...

A primary cold sore infection is described as the first time that you are infected with the herpes simplex virus (HSV) that causes cold sores. The most common area affected is the mouth. The reason is that the moist inner skin is not resistant to the virus compared to the normal skin.Primary (or...

Melanoma is a form of skin cancer that develops in the melanocytes, which are the cells that determine your skin color because of the melanin pigment. Melanoma has the ability to develop in various parts of the body including the eyes, nails, mouth, as well as some internal organs such as the...

Molluscum contagiosum is a contagious skin infection, which is mostly seen in children and the elderly. The infection comes with uneven bumps on the skin, which get bigger in size. The bumps are itchy and develop blisters when scratched. Sexually active adults are usually affected by this skin...