Shingles is a viral infection skin disease caused by varicella zoster virus, itchy skin after shingles is well, it may be the process of nerve repair, also considered to be related to postherpetic neuralgia. 1. The process of nerve repair: herpes zoster is a skin disease caused by viral infection, which is caused by varicella zoster virus infection. Herpes zoster is prone to occur in a certain peripheral nerve innervation area, the nerve in the process of recovery, the local may appear itchy skin manifestations, the main consideration and nerve repair related. 2. Postherpetic neuralgia: After herpes zoster is healed, localized skin itching, but also to understand whether it is related to postherpetic neuralgia of herpes zoster. In addition to this, the itchy skin after shingles treatment, may also be allergy-induced urticaria or eczema-like changes. It is recommended not to scratch the irritation, if the itching is obvious timely to the hospital, follow the doctor’s advice to give loratadine, levocetirizine hydrochloride and so on can help relieve the itching. Drugs need to be used under the guidance of a doctor, avoid self-medication.