Hi dear good morning..
Its due to fungal or bacterial infection.
You want to follow good hygiene
Folliculitis- Vaginal pimples may seem like a hair-raising situation – well, more like a hair-curling one. An inflammation or infection that affects one or more hair follicles, folliculitis can be caused by shaving your pubic hair; the hair growing out of the follicle can curl back towards the skin and cause pimples.
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