1. Dr Adrian Morris of Surrey Allergy Clinic explains allergies
Allergic Conjunctivitis and Eye Allergies. Occasionally desensitisation is used to induce allergen tolerance and reduce the intensity of the allergic reaction. Dr Adrian Morris of Surrey Allergy Clinic explains allergies.
http://www.allergy-clinic.co.uk/

2. Environmental Tobacco Smoke
In adults, ETS can worsen existing pulmonary symptoms for people with asthma and chronic bronchitis, as well as for people with allergic conditions. Even individuals who are not allergic can suffer eye irritation, sore throat, nausea, and hoarseness.
http://www.meb.uni-bonn.de/cancernet/600039.html

3. Environmental Tobacco Smoke
ETS can worsen existing pulmonary symptoms in people with asthma and chronic bronchitis, as well as for people with allergic conditions. ETS exposure due to parental smoking, especially the mother's, contributes to 150,000 to 300,000 cases...
http://www.meds.com/lung/smoking/environmental.html