[Comorbidity and multimorbidity for allergic diseases].

The prevalence of allergic diseases has gradually increased worldwide along with the development of industrialization, changes in environmental factors, adjustment of people's diet structure and increasing exposure to allergens. Allergic diseases have become an important challenge to global public health strategies. Meanwhile, the coexistence with allergic rhinitis, and(or) allergic asthma, and(or) atopic dermatitis and other allergic diseases in a single patient is becoming more and more prevalent. Allergic comorbidities and multimorbidities will inevitably increase the difficulty of treating and recovery, seriously affect patients' quality of life, and greatly increase the burden on social medical insurance. Understanding the underlying mechanisms of comorbidities and multimorbidities has both preventive and therapeutic significance. This article reviews the research progress of allergy comorbidity and multimorbidity in order to address the importance of this phenominon, stimulate clinical attention and provide a reference for the formulation of prevention and treatment strategies.