ABSTRACT Objective Headache and rhinitis are highly prevalent and comorbid. The objective of the present study is to analyze the correlation of headache and rhinitis, in addition to the temporal pattern of these diseases in 17 years, using the Google Trends platform. Methods Google Trends was searched from January 2004 to June 2021, using the entry: [“rinite” (rhinitis) + “dor de cabeça” (headache)” + “Alzheimer” + “enxaqueca” (migraine)]. Migraine, primary headache, and Alzheimer’s, with no clear relation with headache, were […]
