After childhood chicken pox disease; Viruses called VZV are located in the root regions of the nerves and remain silent. With the decrease of body resistance, silent viruses are reactivated and cause pain in the skin in the region where they are located. Since there is no rash in this period, it can be mixed with other diseases.
After a few days in the area of pain, red vesicles and vesicles filled with water appear. In this period, a person who has not had chicken pox in the area that has rash can be infected with chickenpox.