Dr. Kolleen L Zimmermann M.D.

Recommended Articles

• What to Expect After a Biopsy

  Biopsies may vary differently depending on the type and location of the tissues and how hard are they to obtain. The medical term used to describe such method is “invasiveness.” A less invasive procedure will, for example, take place in a doctor’s office the same day an abnormal tissue is...

• What are Epidermoid Cysts?

  Epidermoid cysts are small, harmless bumps seen under the skin in different parts of the body. Sebaceous cysts are small bag like cysts filled with oily secretions affecting the oil glands. These cysts are less common and affect the sebaceous glands in the body. The sac-like structures often develop...

• What Is Seborrheic Dermatitis?

  What is seborrheic dermatitis?Seborrheic dermatitis, or seborrhea, is a common skin disease that has no known direct cause. It is characterized by a red, itchy rash on the skin, often on the scalp, with scaly patches that flake off. It looks similar to eczema, psoriasis or an allergic reaction....

• What Is Acne: Get the Facts

  Acne is a condition that affects the oil glands of the skin. The pores connect to oil glands underneath the skin. These glands form an oily substance referred to as sebum. The pores then link to the glands via a canal known as the follicle. Inside these follicles, oil transports dead skin cells...

• Is Rosacea Contagious?

  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...

• Herpes Simplex Virus: The Cause of Cold Sores

  Herpes simplex is a retrovirus that infects humans. The virus is passed from one person to another through direct physical contact or contact with anything that has come in contact with saliva or other body fluids of an infected person.Once the virus enters the body, it has a clever mechanism to...