Bronchitis. An inflammation of the lung's airways. Symptoms include a persistent cough and phlegm. Bronchitis is usually seen in smokers and in places with high pollution.
Contact dermatitis. An allergic reaction that occurs after skin comes in contact with an allergen such as poison ivy, washing powders, perfumes, or other irritants.
Dander. Small pieces of skin shed by an animal, similar to human dandruff. Proteins found in dander are the major causes of pet allergies.
Decongestants. Medications that shrink swollen nasal membranes, decreasing congestion and mucus, and making it easier to breathe.
Eczema. Chronic inflammation that causes a skin rash. Eczema may be a reaction to an allergen. Symptoms include itching, crusting, blisters, and scaling. Atopic dermatitis is a type of eczema that worsens after exposure to an allergen.