Respiratory System

Allergic rhinitis is commonly called as a hay fever. It is the allergic reaction to allergens commonly to the pollen grains. When any allergen comes in the contact with body, it produces chemical called histamine as a defence mechanism.

Asthma is a nothing but a constriction of airways in the lungs. These airways, allow air to come in and out of the lungs. It is a chronic disease. Airways or bronchial tubes are always inflamed in asthmatic people.

Acute bronchitis is a condition which remain for 5 days to 1 week. It is contagious before 2-3 days of the symptoms appearance and during bronchitis also. Chances of contagiousness reduced as symptoms wane away.

Common cold is an upper respiratory tract infection which is caused by many viruses. 50% cold is caused by this virus. The common cold is transmitted by infected airborne droplets or by contact with an infected secretions.

Sinusitis is the inflammation of the mucus membrane of paranasal sinuses. Normally the sinuses are filled with the air in healthy condition. But when they get blocked by fluid germs started to grow over there causes infection.

Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus. Most people infected with the COVID-19 virus will experience mild to moderate respiratory illness and recover without requiring special treatment.