thanks for posting your query.
may heal even without treatment but it may produce post herpetic neuralgia
which you seem to have at present.
You need not take aciclovir
any more as the shigles has subsided.
But, do take gabapentin
and methycobalamin tablet with your doctors consent as this is the right choice for post herpetic neuralgia.
you may have to take amytryptalline additionally if needed