This article focuses on one of the interactive processes that parents use to cope with their child's asthma. The concept allowing for the opposite was developed in the course of a clinical project designed to improve consultation methods in pediatric allergy care. We examined material from 67 conversations carried out with 22 heterosexual couples held with two family therapists: one male pediatrician and one female social worker. We found that parents made use of each other's differences in personality and parenting style, allowing each other to take opposing positions on how to cope with their child's asthma. Disagreement should be added to the list of coping mechanisms used by parents in their cooperative efforts to handle their child's asthma.