3  Working process of virtual reality for COVID-19
The concept of virtual reality is proved for providing a bunch of applications for healthcare and attracting medical practitioners by offering them various uses in the core area of healthcare and treatment [[11], [12], [13], [14], [15]]. There are several ways in which the concept and process of VR are helpful in context to mitigate effects of COVID-19. Fig. 3 is demonstrating the various advantages in the execution of the virtual reality concept in fighting the COVID-19 pandemic. The following are some of the proposed majorly emerged concerns to make the healthcare domain trained and more proficient.⁃ Through medical training
⁃Patient treatment
⁃Medical marketing
⁃Disease awareness
Fig. 3 Several key-advantages in executing the VR approach for COVID-19.

3.1  Through medical training
The proper and effective COVID-19 medical staff training will make the physician quite familiar with the actual case and the exact situation to be handled. Virtual reality offers the doctors or medical personals to withstand and practice all the most complex cases by supporting them to have reachability as similar to real patient handling, as the case may be. This support creates a more analogous environment where the physicians and health workers can learn more quickly and positively to handle the issues with care and proper learning. In this way, the cooperation named as medical realities is practically employing the virtual reality culture intending to deliver superior quality training for the handling of surgical cases. It ultimately utilizes and offers an interactive and immersive experience.

3.2  Patient education
The impressive facilities employed and offered in a virtual reality approach, educate not only the healthcare personals but also its ultimate beneficiaries, i.e. patients. This theme also enhances patient satisfaction as well as provides the doctors with a vast work gratification too. In the case of surgery based treatments, its efficacy gets multiplied [[16], [17], [18], [19]].

3.3  Mental and psychological treatment
The extreme cases where difficulties in terms of psychological behaviour took place, the concept of virtual reality is proven as a powerful tool in those cases too. After passing through such an extreme pressure of pandemic like COVID-19, these patients also undergo some psychosomatic disturbances. In those cases, the VR methodology can become quite helpful and significant too.

3.4  Management of pain & physical therapy
Apart from the based surgical treatment and psychosomatic cases, the virtual reality concept also proved superior while handling discomfort and physical therapy too [[19], [20], [21]]. The created virtual training and learning atmosphere helps the sufferer to heal more quickly and sharply. This ultimately reduces the overall recovery time and enhances the patient’s satisfaction.