Dr. Mark W Jenison MD

If skin care products cause irritations like itching, swelling and redness, your skin is sensitive. “As such, there is not a definition for sensitive skin”, says Rachel Herschenfeld, MD, FAAD, a dermatologist in Wellesley. All dermatologists can determine if the skin is sensitive. According to...

Heat rash is a generic term used to describe a skin infection that is caused by an intense heat exposure to the skin. As a result of the body being exposed to too much heat, there is excess sweating.This excess sweat mostly blocks the sweat glands, which leads to the trapping of perspiration in the...

What are freckles?Freckles are flat and circular spots that are beige or brown in color. Their size is usually comparable to the size of the head of a small nail. People who have red hair and a fair complexion often have freckles because of the MC1R variant gene, which is responsible for the...

Skin disorders are a common cause of concern for most individuals. Skin is the body’s most sensitive organ and it is susceptible to infections of all sorts since it is constantly exposed to the external environment. The skin acts as a barrier from potential threats of the environment that may...

Acral lentiginous melanoma is a type of melanoma arising on the palms or soles of the feet. Acral lentiginous melanoma is not just a fancy name for melanoma on the fingers, toes, palm, soles of the feet, and under the nails, but it is also a type of melanoma that is the rarest among melanomas,...

Carbuncle refers to a cluster of boils under the skin caused by the infection of hair follicles. The infected hair follicles form a small group of painful, reddish bumps on the skin which later get filled with pus. Carbuncles often form in hairy areas like the back and may also form in areas like...