The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is the virus that caused the COVID-19 pandemic. Initial symptoms include fever, cough, and dyspnea. Symptoms include nausea, vomiting, and abdominal pain, GIT involvement is also possible. The COVID-19 outbreak has increased the need for alternative medicine administration routes, particularly in public places. Buccal, sublingual, and rectal administration are all considered transmucosal methods. They are self-administration options for non-invasive systemic distribution. In addition, they are great for use in palliative and end-of-life care because of their quick onset of action and decreased first-pass metabolism. A mucosal atomization device allows for the intranasal administration of a parenteral formulation through nasal spray. Rectal mucosal absorption is comparable to that of the oral route, making the rectal route an extremely versatile and useful method of drug administration for a wide variety of medications. Covid-19 illness is treated with a variety of drugs, including anti-malaria medication (hydroxychloroquine), glucocorticoids (dexamethasone), antibiotics (azithromycin), and antiviral medications (favipiravir). This article discusses the route of drug administration for COVID-19, as well as symptoms, treatments, and the various ways it can be spread