M.E.
Hi K.,
I am one of those rare freaks that has never been immunized for the chickenpox and has had it multiple times. I have had the chickenpox 7 times, no it did not every become the shingles. Yes, you can get a very mild case of the chickenpox that doesn't itch much, but they will blister. However, this sounds more like a mild allergic reaction, you might try a small dose of benadryl or maybe some calendula lotion/oil (calendula is marigold and it has wonderful healing properties, it was recommend for a post birth lacerations and cracked nipples, by my midwives).