Dr. Charlotte Leslie Tsai MD

Psoriatic arthritis is a type of inflammatory arthritis that affects people with psoriasis. Psoriasis is a skin condition characterized by inflammation of the skin with dry, silvery scales. Psoriatic arthritis affects about 10% to 30% of people with psoriasis. This condition usually occurs between...

The stratum corneum is the outermost epidermal layer of the skin, which consists of dead cells called corneocytes. It is the major barrier of the skin when it comes to chemical transfers. The main purpose of the stratum corneum is to protect the underlying tissues by forming a barrier. The...

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...

Herpes Simplex Virus 1 (HSV-1)HSV-1 or herpes simplex virus type 1 is a type of herpes simplex virus that causes cold sores. It is called "oral herpes" because it often causes sores around the mouth or on the lips. Cold sores are also called as fever blisters. However, the sores can also be found...

What are the Signs and Symptoms of Heat Rash?Heat rash is a condition that affects the skin when it is exposed to high temperatures, and sweat gets trapped beneath the layers of the skin. Victims of this condition usually experience general symptoms such as:...

What is a lipoma?Lipoma is the most common benign tissue tumor that occurs in almost 1 percent of the population. A lipoma consists of mature fat cells. Typically, a lipoma is enclosed by a thin fibrous capsule. Usually, lipomas develop superficially under the skin, but they can also occur anywhere...