Identify the allergy period for Isadora Moen and what triggered it.
allergy period = SUBTRACT(allergies.START, allergies.STOP); what triggered the allergy refers to allergies.DESCRIPTION;
SELECT T2.START, T2.STOP, T2.DESCRIPTION FROM patients AS T1 INNER JOIN allergies AS T2 ON T1.patient = T2.PATIENT WHERE T1.first = 'Isadora' AND T1.last = 'Moen'