The revolution of Internet of Things (IoT) technologies has changed the healthcare system by assimilating the various technological, social and economical aspects. It emits the healthcare system from conventional to the more customized system. In the current global COVID-19 pandemic circumstance IoT play a crucial function to combat corona virus infections. The early diagnose of COVID-19 is very necessary in order to prevent the disease from spreading globally. In this paper we survey the significant role of IoT-based technologies along-with some associative advanced technologies to early detect the COVID-19 infections. We review the sate-of-the art architecture and applications to combat COVID-19 infections and propose an IoT-based framework which helps to early detect and monitoring the COVID-19 infections.