https://www.selleckchem.com/products/nigericin-sodium-salt.html The novel coronavirus, referred to as SARS-COV 2, originated in Wuhan, China in December 2019. Since many Health Care Workers (HCW) and general public lost their lives. The only thing which can prevent from being infected is social distancing and wearing of mask (N95) and wearing of mask has its own adverse effects. This is a retrospective study conducted in the Department of Otorhinolaryngology, Hind Institute of Medical Sciences, Sitapur from April 2020 to August 2020. The most common symptoms of wearing mask were headache, nasal dryness, eye dryness and acne for which extra precautions to be taken to deal with these conditions during COVID-19 pandemic. HCW should wear mask to prevent from exposing but while using the mask there are certain prerequisites which has to be followed to prevent from not only thr COVD - 19 but also the complications of prolonged use of N95 mask.The novel coronavirus disease 2019 (COVID-19), which caused Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), was appeared at the end of 2019 in wuhan city in china. Covid-19 has high ability of transmission from human to another human, and due to its fast spread globally, the World Health Organization (WHO) announced that Covid-19 is pandemic disease on March 11, 2020. Several articles have reported many common ENT-related symptoms as an early sign of COVID19. To measure the prevalence of insomnia and dysgeusia in COVID19 patients in Saudi Arabia and investigate their functional and psychological effects on patients. This study evaluated the impact of insomnia and dysgeusia on COVID-19 patients' quality of life using the short version of the Olfactory Disorders-Negative Statements (sQODNS) Questionnaire. It was done from 5 June to 30 July 2020, in the Eastern region of Saudi Arabia. A total of 274 laboratory-confirmed COVID-19 patients were participated. The most common ENT-related symptoms were headache 69%, insomnia 65