Dr. Timothy A Nielsen MD

Recommended Articles

• Poison Ivy, Poison Oak, Poison Sumac: The Rashes

  What is poison ivy? Poison ivy (Toxicodendron radicans) is a popular plant known for causing rashes and skin irritation when one comes in contact with it.Poison ivy is a woody shrub or vine that is found in either shady or sunny locations. It can grow up to six feet tall as a shrub, or 150 feet tall...

• What Are Comedones?

  What are Comedones?Comedones refer to skin bumps, which are a result of clogged pores. A single bump or lesion is called a comedo. Skin pores can be fully or partially blocked and often lead to the formation of whiteheads and blackheads. Mild acne involves the presence of whiteheads and blackheads,...

• Immunotherapy for Melanoma

  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...

• Blackheads: Symptoms, Causes, and Treatment

  What Causes Blackheads?Blackheads form when the sebaceous glands of skin produce excessive oil. This oil and dead skin cells clog the hair follicles in your skin, producing a bump called a comedone. If the skin over the bump stays closed, it forms a whitehead. When the skin over the bump ruptures,...

• What Is Cellulitis?: Symptoms, Causes, and Treatments of Cellulitis

  Cellulitis is a bacterial infection, which usually occurs in the deep layers of the skin. The infection happens when bacteria enter the skin through open cuts and wounds. The infected area usually feels warm to touch, painful, red, and swollen.The most common part of the body affected by cellulitis...

• What Causes Cat Scratch Fever?

  What is cat scratch fever?Cat scratch fever is also known as "cat scratch disease", which is a type of bacterial infection. The disease got its name because humans contract the infection from cats that are infected with the bacterium called Bartonella henselae, which is one of the most common...