Tips to help prevent fall allergies In the fall, people are indoors more, triggering more allergies and asthma In the fall, kids go back to school and adults return to work (or never left). Being indoors more then increases their exposure to indoor allergens such as pets (especially dogs and cats) and house dust mites. In addition, infections (viruses, colds, flu, etc.) are on the rise during this period and are potent triggers of asthma attacks, as well as sinus and ear infe