Dr. Mark N Zacks M.D.

Recommended Articles

• What are the Symptoms of Allergies?

  The term allergy refers to the exaggerated immune response to certain foreign substances that normally may be harmless. These substances, which trigger an allergic response, are called allergens. The allergens may not trigger a similar response in everybody, and may remain harmless for others. Some...

• Different Types of Physicians Explained

  Doctors or physicians are categorized according to different factors including medical specialties and subspecialties. Most doctors specialize in a specific area of medicine. This article provides a summary of the different types of doctors in the medical field. AllergistsAllergists are also...

• What Are Petechiae?

  What Are Petechiae?Petechiae can be described as marks or blotches that normally appear on the skin and are tiny, round, and purplish or reddish in color. Petechiae are usually pinpoint-sized. Minor hemorrhage (bleeding that is localized below the skin) is the source of petechiae.Although they...

• Immunosuppressive Drugs for Multiple Sclerosis

  What is multiple sclerosis (MS)?Multiple sclerosis is a medical condition that affects the brain and the spinal cord. A few of the early symptoms of the disease are numbness, tingling sensation, blurry vision, and feeling weak. In this disease, the immune system tends to attack the myelin, which is...

• What Are Histamine Blockers and How Do They Work?

  What are histamine blockers?Histamine blockers also called as antihistamines are medications that block or reduce histamine to stop the symptoms of allergy. Histamine is a chemical that is released by a type of white blood cell called mast cell in response to allergies or injuries. The cells that...

• What Are the Symptoms and Treatment Options for a Nickel Allergy?

  A nickel allergy, or jewelry allergy, is the most common form of contact dermatitis associated with the use of earrings and other jewelry. Nickel is found in many items, including accessories, like necklaces and bangles, coins, zippers, watch straps, hair pins, and frames. This skin allergy affects...