Apart from antivirals to contain the virus infection and prevent post herpetic neuralgia( pain persisting after resolution of lesions), antibiotics are required to prevent the blisters from getting infected. There is no need to put Vaseline or cover the area. Applying an antibiotic cream is enough to help the lesions heal without getting infected. Just continue with neosporin
. Even if the blisters got deroofed, there is nothing to worry.
Wish you a speedy recovery. Take care.