Dr. Carl Allen Johnson MD

IntroductionCondyloma is also known as genital warts. It is considered as a sexually transmitted disease (STD) that appears on the external genital region. It usually appears in the anal region, the upper vaginal portion, and in the urethra of males. The lesion appears raised and pinkish in...

Scalp psoriasis is a very common scalp condition characterized by raised, scaly patches on the scalp. This condition is found in approximately 7.5 million people in the country. In most cases, people with this condition may also have symptoms of psoriasis in other parts of the body. The scalp...

Heat rash is a skin condition that occurs when sweat ducts get blocked deeper below the skin surface. It mostly occurs when the weather conditions are hot and humid. The condition prevents the sweat produced from escaping and this leads to irritation of the skin.What is miliaria rubra?There are...

For a long time, it has been part of cultural knowledge that exposure to sunlight can help treat eczema. Now, it is medically agreed that eczema can be treated using UV light. But does this mean that you should go out and get yourself sunburnt?To answer this question, first, you have to consider the...

One of the most commonly asked questions by many people is whether rosacea is contagious or not. Rosacea is a common skin inflammatory condition affecting nearly 14 million people of the United States alone. It causes redness and a pimple like rash on the face, especially over the forehead, cheeks...

An abscess is a soft swelling or bump on the surface of the skin filled with pus surrounded by pink to reddish skin, which develops in response to a foreign body or an infection. The middle part of the abscess is filled with debris and pus, and is often warm to the touch.Abscesses are usually...