What other ‘events’ make mites more harmful . Lungs become agitated and ultra-sensitive for a time following damage from respiratory viral infections, excessive cigarette smoke or ozone inhalation. Following harmful exposure to pollution or from viral infections, lungs are ´under repair´ and in a heightened state of agitation. While this sensitivity is maintained it is best to avoid contact with aggressive allergens (enzymes) found in mite droppings as ultra-sensitive lungs are known to amplify and intensify reactions to allergens. Note; If over exposure to the major mite allergen (Der p1) causes significant damage to vulnerable tissue, the breach or ‘hole’ in lung defences may invite harmful bacteria or moulds inside. Doctors believe that this may be the reason why people with asthma develop more lung infections than healthy people.    See - Time Line: 2003 (21)  Other Public Research What is the house dust mite How mites can cause and trigger allergic disease  What can be done to reduce the health risks from mite exposure What other ‘events’ make mites more harmful . Ozone from photocopiers and mite allergens  House dust mites can make lung inflammation worse Life in house dust mite droppings Flu and the house dust mite Dog dermatitis is caused by specialized allergens from house dust mites.  All 20 allergens from house dust mites must be taken into account in assessing reactions Skin Testing for Allergies Skin prick testing after 14 years