Not preg related!

I was just wondering if anyone else has this same problem basically when I'm on my period I use sanerty towels as I crnt use tampons I think I'm allergic to sanerty towels every time I use them my skin down there becomes so irritated soon as my period ends and o stop using pads its goes away I've tried all different pads I don't no what else I can do I'm going to my doctors tomorrow to see if they can help I deffo no the issue is down to the the sanerty towel and nothing else anyone suggest anything thanks