I am having blisters on my back area near my spine, it gives me a lot of pain and burning sensation. I have consulted a skin specialist who diagnosed it as Herpes Zoster. I have been prescribed Valcet 1000 mg thrice a day for 5 days. Emanzen D twice a day for 5 days. Fusiate cream to be applied on blisters twice a day for 5 days. Kivical lotion once every day at night. He did not do any tests for the same. Just manually verification and all these medicines were prescribed. For the last 3 days I have taken these medicines but not any great results yet. Are there any tests which needs to be done for the same to confirm the disease?