General or Other | - Others | Painful Rash (Symptom)
Skin rashes can occur from a variety of factors, including infections, heat, allergens, immune system disorders and medications.
Skin rashes may cause discomfort or pain, as well as embarrassment about the appearance of your skin. Some skin rashes, such as heat rash and swimmer's itch, clear up on their own, but others, including rosacea and shingles, may require medical treatment.
The painful rash is associated with shingles (herpes zoster) is a painful rash caused by varicella zoster virus, the same virus that causes chickenpox. In people who have had chickenpox, the virus is completely eliminated from the body but remains dormant in nerve tissue. When physical or emotional stress in the body weakening the immune system, the virus is reactivated and spreads along the nerve fibers in the particular area of skin innervated by the nerve involved (a dermatome).
The virus responsible for chickenpox and herpes zoster is a member of the herpesvirus, although not the same as the herpes simplex 1 and 2 viruses that causes cold sores and genital herpes, respectively.