Spider sores are also known as herpes zoster, and the disease is contagious and can be spread through contact with the blisters of a person with herpes zoster, among other things.
Herpes zoster is caused by infection with varicella-zoster virus and manifests as flushed skin patches, corn to soybean sized papules and blisters, neuralgia, and may be accompanied by low-grade fever, mild malaise, and loss of appetite.
Herpes zoster is contagious, the infected person is the source of the disease, can be spread through contact with the blisters of herpes zoster, contact with the infected person’s belongings and so on. Herpes zoster is generally not contagious before the blisters appear or after the blisters have crusted over. However, the fluid that comes out of the broken herpes is highly contagious.
If you have herpes zoster, you should pay attention to protecting the skin where the rash occurs to avoid infecting others, and you should consult a doctor as soon as possible and standardize the treatment under the doctor’s guidance so as not to delay the condition.