Systems for telehealth and telemedicine provide medical care remotely in an effort to impede the COVID-19 pandemic. Additionally, they can aid in the management of the limited healthcare resources needed to alleviate the heavy load that COVID-19 patients experience in hospitals. By offering a safe, open, and decentralized platform for exchanging and preserving private patient data, blockchain technology in telemedicine and telehealth aims to alter the way healthcare services are provided.Improving patient outcomes is one of the blockchains in telemedicine's other goals. Healthcare providers can access accurate and current information about their patients, enabling them to make educated decisions about their care, by offering a transparent and secure platform for storing patient data. Patients may experience better health outcomes as a result, and there may be fewer medical errors and higher standards of care overall. By enabling smart contracts and decentralized apps, blockchain technology can potentially streamline hospital processes. Smart contracts automate the payment process, lowering administrative expenses and increasing payment efficiency. Smart contracts are self-executing contracts. Remote consultations can be facilitated through decentralized applications, allowing patients to obtain care from any location in the world. To sum up, the purpose of blockchain in telemedicine and telehealth is to offer a safe, open, and decentralized platform for storing and exchanging private patient data. Healthcare providers can increase data privacy, lower fraud, improve patient outcomes, and streamline administrative processes by utilizing blockchain technology.