A wireless patient monitoring system involves remote supervision of sensitive patients by wirelessly transmitting patient information to distant locations, especially in pandemic situations like COVID-19. Li-fi-based communication protocol is used in healthcare which helps in reducing the challenges faced by medical professionals in effectively monitoring multiple patients as well as average persons in public places. Due to COVID-19, doctors/healthcare workers are compelled to work with infected patients. This proposed technique lets them observe patients without being on their bedside, whether in the hospital or at home. This device can also be installed in public places to detect the abnormal and symptomatic persons who are affected by COVID-19. It is used to monitor patient health, ranging from heart rate, body temperature, ECG, breathing, non-invasive blood pressure, oxygen saturation, etc. Wireless patient monitoring using li-fi eliminates national therapy barriers. Thus, a li-fi-based patient monitoring system will lead to a significant role in Healthcare services. The radiation-free device shall be implemented in all the industries to find the COVID-19-affected persons easily.