Allergies occur when your immune system reacts to a foreign substance — such as pollen, air borne particles or pet dander — or to a food that doesn’t cause a reaction in most people.
Asthma is a condition in which your airways narrow and swell and produce extra mucus. This can make breathing difficult and trigger coughing, wheezing and shortness of breath.
The common cold is a viral infection of your nose and
throat (upper respiratory tract). It’s usually harmless,
although it might not feel that way. Many types of
viruses can cause a common cold.
Cystic fibrosis is an inherited disorder that causes
severe damage to the lungs, digestive system and other
organs in the body. Cystic fibrosis affects the cells
that produce mucus, sweat and digestive juices.
An ear infection is most often a bacterial or viral
infection that affects the middle ear, the air-filled space
behind the eardrum that contains the tiny vibrating
bones of the ear.
Psoriasis is a common skin condition that changes
the life cycle of skin cells. Psoriasis causes cells to
build up rapidly on the surface of the skin.
Acute sinusitis causes the cavities around your nasal
passages (sinuses) to become inflamed and swollen.
This interferes with drainage and causes mucus to
Snoring is the hoarse or harsh sound that occurs when
your breathing is partially obstructed in some way
while you’re sleeping.