Welcome to healthCareMagic forum.
On reading your history, I can think of two possibilities,
1. HYPERTROPHIC SQUAMOUS MUCOSA with KERATOSIS- a change in the epithelial lining of the vagina.
2. Fox Fordyce's Spots- spots due to sebaceous gland
secretions as in sweating , etc.
To diagnose this , a biopsy
from the tissue is needed and the smear will be subjected to microscopy examination.
Treatment is non specific, there are many things which have been tried , but most of it resolve spontaneously, steroid
creams, hormones, antibiotics, estrogen
creams, etc may be of use.