Christopher W Carr MD

Immunotherapy, in general, is a treatment process that uses some medications to activate an individual's own immune system to effectively recognize and kill cancer cells. Immunotherapy for melanoma is based on the principle that a person’s own immune system is able to generate an immune response...

Heat rash, prickly heat, or miliaria is a condition that results from the blockage of the sweat ducts. This condition usually affects people living in hot and humid places. As a result of the blocked pores of the skin (sweat ducts), perspiration is trapped under the skin. Once sweat is stuck in the...

Genital Herpes is the most common sexually transmitted disease. It is caused by two types of viruses - herpes simplex Type 1 and herpes simplex Type 2. However, people suffering from the condition are not aware of it because it hardly presents with any symptoms. So, in most of the cases people are...

Rosacea is a long-standing skin condition that mainly affects females in the ages between 30 to 50 years. It initially develops some redness over the face and later followed by bumps that look similarly to pimples. It commonly affects the cheeks, nose, and forehead. These symptoms are often...

What is melanoma?Melanoma is a type of skin cancer that affects the melanocytes or the skin cells that contain the pigment melanin. It is caused when long or repeated exposure to UV radiation damages the DNA of these skin cells and causes them to divide uncontrollably forming a malignant tumor....

What is petechia?The definition of petechia falls under the category of hemorrhaging. A petechia, or more commonly used in Latin plural, petechiae, are microscopically small dots which appear beneath the skin surface in red, brown or purple color. We refer to them in plural because they are barely...