Allergies & Immune System

AIDS

Human immunodeficiency virus (HIV) is a virus that causes acquired immune deficiency syndrome (AIDS). HIV/AIDS weakens your ability to fight infections. It is contracted through unprotected sex or needle sharing with an infected person.

Allergic Rhinitis (Hay Fever)

Seasonal allergic rhinitis, often referred to as "hay fever" is triggered by a common allergen called pollen, which is produced by certain types of grasses and trees.

Allergies

An allergy is an abnormal reaction to certain substances called allergens. These allergens may be inhaled, swallowed, or come in contact with the skin to trigger a reaction.

Asthma

Asthma is a chronic disease that affects your airways (tubes that carry air in and out of your lungs).

Contact Dermatitis

Contact dermatitis is inflammation of the skin caused by direct skin exposure to a substance. The dermatitis may either be allergic- or irritant-induced.

Eczema

Eczema, or atopic dermatitis, is an allergic condition that causes inflammation of the skin. It can be triggered by just about anything coming in contact with the skin. It occurs most commonly in people who have sensitive skin.

Eosinophilic Disorders

Eosinophilic disorders occur when eosinophils, a type of white blood cell, are found in above-normal amounts in various parts of the body.

Lupus

Systemic lupus erythematosus (SLE) is an autoimmune disorder, meaning that the immune system is attacking healthy tissue in your body.

Polychondritis

Polychondrosis is a disease in which cartilage – the tissue that protects bones and joints – becomes inflamed.

Rheumatoid Arthritis

Rheumatoid arthritis is an autoimmune disorder, meaning that the immune system is attacking healthy tissue in your body – in this case the lining of the joints.

Scleroderma

Scleroderma is an autoimmune disorder, meaning that the immune system is attacking healthy tissue in your body.

Sinusitis

Sinusitis is a condition caused by a virus that makes the cavities around the nasal passages swollen and agitated.

Urticaria (Hives)

Hives, also called urticaria, affects up to 25 percent of people at some point in their lives.