Dr. Andrew H Greenhill MD

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...

What are Allergies?An allergy is basically a disorder of the immune system response that leads to certain symptoms, such as coughing, sneezing, watery eyes, and a runny nose. When the immune system reacts to a foreign substance, such as dust mites, pollen, pet dander, bee venom, or any kind of food,...

The allergens which cause sneezing and watery eyes in many people, are the ones responsible for asthma attacks in few others. It can be stated without the shred of a doubt that allergies trigger the most commonly suffered chronic conditions in the United States. The connection between allergies and...

Swellings, referred to as weals, manifest on the skin as rashes. They are normally pink or red in color, possess an oval or circular shape, and may be surrounded by a reddish flare. Hives can be detrimental and awfully itchy.The weals normally appear in batches, and frequently occur on the face,...

Allergies have a direct connection with the immune system of a person.Primarily, our body’s defense system is meant to create a defense mechanism against various diseases that cause germs or bacteria. However, for people who have allergies, this defense mechanism also combats harmless substances...

Lupus or systemic lupus erythematosus (SLE) is a chronic autoimmune condition where your immune system sees your own tissues as foreign cells and therefore starts to produce antibodies against them. Since the antibodies are produced by your own cells, these antibodies are given the term...