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Shingles or herpes zoster
starts with tingling sensations, abnormal sensations and pain along the area where the nerves are affected. The nerves are inflamed and cause pain along the dermatome or skin supplied by nerves. In your case right side of your body. The blisters are usually grouped blisters which occur again and again for 5-7 days and then heal without scarring after 3-4 weeks. Hive like rash
also can occur.
Please continue your antiviral
treatment, and local application of acyclovir
cream over the rashes 5 times a day will help.