General knowledge about the nature of the COVID-19 -- Epidemiological aspect of the COVID-19 pandemic -- Neurological manifestations of COVID-19 -- COVID-19 headache as a secondary headache disorder -- COVID-19 headache is a real specific headache disorder. Potential mechanisms of COVID specific headache disorder -- Clinical pictures and diagnostic features of COVID-19 specific headache disorder -- Current management of COVID-19 infection -- Current management of COVID-19 headache.-Current changes of previous headache disorders in the pandemic era -- Effect of personal protective equipment on headache disorders -- Effect of COVID-19 vaccines on headache disorders -- Effect of ICU process on headache disorders -- Effects of vascular comorbidities on COVID-19 headache -- Effects of non-vascular comorbidities on COVID-19 headache -- Changing nature of headache practice in pandemic era -- Changing nature of headache education in pandemic era -- Changing nature of interventional pain management in pandemic era -- COVID-19 specific problems and solutions on childhood and adolescent headache practice -- COVID-19 specific problems and solutions on elderly headache practice -- COVID-19 specific problems and solutions on pregnancy and breastfeeding headache practice -- Genetic and epigenetic aspect of COVID-19 in the manner of headache practice -- Telemedicine for public headache awareness -- Telemedicine for headache education -- Telemedicine for headache research -- Artificial intelligence for future headache practice.