If you notice fever blisters on your face, it's likely caused by the HSV-1 virus, which is highly contagious through touch. These blisters can come and go, sometimes causing pain. Taking tablets like Acyclovir can help ease the symptoms and speed up healing. It's crucial not to pop or touch the blisters to prevent spreading the virus. Keep the affected area dry and clean to avoid infection. Visiting a dermatologist for proper treatment is a good idea.