NO exposure increases eczema outpatient visits in Guangzhou, China: an indication for hospital management.

Background: Ambient nitrogen dioxide (NO) is a common air pollutant in developing countries and causes skin conditions, but its effect on eczema in subtropical areas is not clear in China.

Object: To measure the effect of short-term exposure of NO on the incidence of eczema and the change of outpatient visits.

Methods: Data of daily temperature, air pollutants, and outpatient visits from 2013 to 2018 were collected in a row.