I am a PhD student at UKM in the field of virology. All description present in detailed in the CV. In my study of PhD, I have a medical plant locally name Mahkota Dewa and the scientific name called Phaleria macrocarpa. This plant acts as antiviral such as of human herpesvirus type 1, however, all antivitral mechanism against this plant extract resulted in potential antiviral agent. Therefore, this plant extract can make like drug instead of antiviral drug of acyclovir (ACV).