1.Introduction
Recent data of patients infected with COVID-19 showed various clinical signs and symptoms as sore throat, headache, hypogeusia, diarrhea, bone ache, and in severe cases pneumonia[1]. Reactivation of herpes zoster (HZ) during the acute or subacute phase of COVID-19 was related to the decline in the varicella-zoster virus-specific cell-mediated immunity[2].
COVID-19 showed a direct impact on T- lymphocytes immune dysfunction resulting in lymphopenia which causes decreased body resistance to infection, and it may increase the reactivation of the HZ virus[3, 4].
We present a unique case of clinically diagnosed oral lesion of HZ infection 10 days after COVID-19 clinical signs and symptoms were detected. Our case highlights the importance of increasing the awareness among researchers and dental practitioners about the possible association between HZ and COVID-19.