Because of hormonal changes and body let out vaginal discharges that has pH imbalance hence mummies may feel dry, itchy, redness, odour, greenish, etc. So you should speak with your gynae, get a cream and apply. Avoid steroid, stop using whatever moisturizer and feminine wash. Use silk panties and stop using pantyliner. Use this method for time being and go speak with your gynae. Nothing to be shy or worried about because most mummies will have it. If you don't then when can your vaginal area get better.
JF