Hi,
Thanks for the query.
Dry vagina can be due to causes like
estrogen deficiency, decreased intake of fluids, irritation to tampons etc can present as this.
Hormonal imbalance can lead to shedding of endometrial tissue intermittently, may be you are thinking that as dirt like material.
So, once consult gynecologist and get examined to find out the exact cause.
If
hormonal deficiency is found to be the cause, taking the hormonal pills may cure both the problems.
Just for
vaginal dryness, lubricants or estrogen creams can help to some extent.
Increased intake of eatrogen containing soya products, beans, green leafy vegetables etc can help to some extent.
Take care.