Herpes Zoster is nothing but mostly due to reactivation of past history of chicken pox.
It can affect the nerves in some cases.
And it takes time to heal and to subside the symptoms.
Next Steps
you can visit some general physician and ask for opinion. there are some medicines can help you but u have to take them only after consulting a doctor.
Health Tips
dont worry it will subside but will take time.
do consult any physician.
thanks.