[Quality of life in chronic urticaria and its relationship with economic impact and disease control in patients attended to at the University Hospital of Monterrey, Mexico].

Background: Chronic urticaria (CU) manifests itself with hives and sometimes angioedema. Physical and social discomfort worsens patient quality of life. CU has an important impact on patients' economy.

[Prevalence of hypersensitivity to Cupressus pollen in allergic patients in Monterey, Mexico].

Background: Cupressus pollen is one of the main causes of allergic respiratory disease in North America. In a previous study of pollen concentration in Monterrey, Cupressus occupied the 3rd place in frequency.

Objective: To know the sensitization to Cupressus in patients treated at our center.

[Helicobacter pylori and disease].

Helicobacter pylori infection is considered an important health problem due to the fact that there are reports that describe that more than 50% of the world's populations is affected by it. The infection has been associated with multiple diseases, gastric and extra-gastric, whose signs and symptoms are overlooked most of the time. Nowadays diagnostic methods have evolved in such a way that they are available for most of the population.