Dr. Mark Thomas O'hollaren M.D.

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...

Are there any circumstances under which vaccination of young children is forbidden?There are particular conditions when the immunization of your child, unfortunately, cannot be performed. If all terms and conditions are followed accordingly, complications are avoidable. These are the circumstances...

Methylprednisolone is a common drug that is recommended for a number of conditions like arthritis, blood-related problems, allergies, cancers, eye conditions, and various other medical conditions. Methylprednisolone helps in reducing the response of the immune system of the body to various triggers...

OverviewAIDS is caused by human immune deficiency virus (HIV). The virus damages the immune system by interrupting the ability of the body to fight infection. The affected person becomes more vulnerable to disease. Individuals that are affected with HIV can acquire AIDS, but not all individuals...

IntroductionThe eye is one of the sensitive parts of the body, and it easily gets affected by any irritants such as microbes. Eyes turning red would be due to not getting enough sleep or not blinking enough in a day. In certain cases, it can also be a sign of some kind of infection or...

The chance of getting infected by Lyme disease from a single bite depends on the type of the tick, how long it has been attached, and where it is acquired from. There are many types of ticks and not all of them can cause Lyme disease. The symptoms of Lyme disease are rash, fatigue, fever, facial...