Dear friend, welcome to HCM !
It is the healing herpetic lesions that are itching.
you must have used acyclovir
ointment on the lesions , have you?
You can use soothing calamine
lotion to the healed areas, acyclovir containing ointment to the affected area.
Do not scratch. keep the hygiene good.
Keep blinking eyes well. Avoid applying calamine near the eye.
Keep an watch for eye involvement and if needed revisit the ophthalmologist.
Can take pain killers for pain in the affected area.
Take care and please keep me informed of your progress.
Good Luck !
I hope to have answered your query satisfactorily.
May I request for your rating and review of this answer before you accept the answer and close the query (if there are no more follow up questions)?
Thank you !