The aim of this paper is to discuss the symptoms, contagious process, prevention and post treatment process of Covid 19. The findings of this paper established that Covid 19 has some symptoms like cough, sneeze, coldness, high fever, throat pain, vomiting with diarrhoea, running nose, stomach problem, loss of taste and smell, headache, breathing problems etc. The contagious process of this virus is like diffusion from person to person, contamination from surface, spread by sneezing, coughing and shaking hands etc. The prevention process of this virus is like maintaining social distance, washing of hands regularly, avoid touching nose, mouth and eyes, covering mouth and nose while coughing and sneezing, wearing masks, avoid eating and drinking in public places, staying at home and wearing PPE etc. No specific vaccine, tablet or medicine has been invented upto April 2020 that can prevent or cure Covid 19 but there are some certain post treatment processes those can help to minimize the intensity of this virus. Once a patient is infected with this virus, he may take some post treatments like staying hydrated, eating healthy foods, taking vitamin D or staying at sunlight, sleeping enough etc. The public should pay more attention to the protection of the elderly who have contracted the virus. If you have any of these symptoms, isolate. This means staying as far away from other people as possible, even from family members. Stay in an appointed "sick room" and use a personal bathroom if you can. The potential of these viruses to become a global pandemic appears to be a serious public health risk. The findings of this paper are beneficial to the personnel involved in public health studies who are in charge of studying corona virus epidemic. This paper opens possible ways for the scholars to further study in this field.