With winter round the corner and mercury hitting new lows, city dwellers, especially children and the elderly, are suffering from severe cough, sneezing bouts, runny nose and itchy face, caused mainly by pollen and dust mite allergy. Doctors say such allergies are common in winter or after rain. Apart from genetic reasons, less exposure to sunlight and pollution are the causes and exposure to allergens and pollutants, physical and psychological stress and smoking can aggravate the allergies. “The only difference between allergies and infections is the presence of fever in the latter and the absence of the same in the former,” said Dr Read more here..