thats something you would have to know for yourself... if you shave down there make sure when you get done shaving you use moisturizer let it dry then you can use baby powder but not alot! Thats what has helped me before!
Hello it is possible that is is from skin dryness, pants or panties rubbing or you sweating in that area. Make sure you clean and thoroughly dry the area a couple of times daily and try using some moisturizer in that area to see if it will help. During the winter months I always put a couple drops of baby oil in my bathwater. (make sure you only use a couple of drops or the tub will be very slick, ensure you wash the tub good after to prevent it from be too slick for the next one in). Also Johnson has a creamy baby oil that is awesome. There may be some generic brands out there too, I'm not sure. It is greasy like baby oil at first then soaks in like lotion. If that doesn't work try using some hydro cortisone cream in that area and it should heal it right up. I Hope This Helps!
I get this when I shave my bikini line - I also find it happens when I wear certain types of underwear. I always moisturise after my shower/bath and it never lasts long.
The reason its happening is because your skin has been irritated by something - the baby powder might not be soothing it as you might hope. Have you tried using moisturiser? Try to keep away from perfumed ones as they will irritate it further - use E45.
If this doesn't work I think you should go and see a doctor just in case its some other skin condition.
I hope this has helped......xxx