Itchy shingles is not necessarily a sign of improvement. It may be that herpes zoster forms inflammatory irritation symptoms, resulting in localized itching, can also be considered related to cause an allergic reaction. Herpes zoster is caused by varicella zoster virus infection, is an acute infectious skin disease. Varicella zoster virus has pro-neurological properties, which can cause pain, itching, insect-crawling sensation and other symptoms. Therefore, itchy shingles is not necessarily a sign of improvement. Herpes zoster is mainly distributed unilaterally in bands, and pain, itching, burning, tingling, or numbness may occur around the involved nerves before the rash appears. Subsequently, the skin may develop erythema, papules, and clusters of blisters with neuralgia. It is recommended to go to the dermatology department of the hospital in time, combined with the doctor’s advice to use medication.