A remarkable step has taken to rescue lives from COVID-19 virus with the development of vaccines. At present, a few vaccines have been developed and dispensed to the patients. In parallel to this process, clinical trials are being performed aiming to develop advanced therapies. This review paper is being written in the period when the vaccine for COVID-19 was administered first time to health professionals in Sri Lanka. Any therapeutic method used against COVID-19 should address the main complications that may associate with the disease state. As a tropical country with rich vegetation throughout the year, application of traditional medicinal plants as treatments of patients or as supportive therapies is a common topic being discussed today. In this review, we discuss the condition of COVID-19 infection in Sri Lanka at the beginning of the administration of vaccine, entering of COVID-19 virus to human red blood cells, abnormal hematological findings, laboratory diagnosis methods available. We discuss the properties of the traditional Sri Lankan plant, Lantana camara and how its potentials to act against the abnormal pathophysiology that may arise because of COVID-19 infected and post COVID-19 infected blood. Furthermore, we discuss the potentials of using Lantana camara in the management of COVID-19 patients in future

Keywords : COVID-19, Lantana camara, hematological complications, red blood cells.