The pollution of the air we breathe is related to myriads of factors. Climate, humidity, concentration of air pollutants in heavily industrial and densely populated areas, thermal inversion, stagnant air masses, seasonal and perennial airborne pollens, dust, moulds, spores and ozone are but a few.
Allergies present themselves according to their target organ of involvement.
For example, allergic rhinitis and sinusitis presents as sneezing, runny nose, tearing, itching of the nose and throat and nasal obstruction. The airborne pollens of spring and fall grasses, weeds, trees, and flowers are well known to us all. Perennial or chronic allergies are due to industrial pollutants, dust, dust mites and animal dander. Allergic conjunctivitis creates itching, red eyes, which can be treated with cold compresses, antihistamines and topical steroids. Allergic dermatitis, eczema and urticaria require special prescriptions from your doctor as does asthma.