herpes

So, I have no bumps or blisters in or on my vagina. It's just red and itchy. But I do have these small itchy red bumps on my butt cheeks. Is this likely herpes? This same thing happened last month when I started my period. I also have a raw butt crack. No bumps or blisters on or by my anus. My RN friend thinks it's just a fungal infection/yeast infection from using super plus tampons the entire duration of my period-even on the super super light days. Yes, I know...bad idea. You don't have to tell me. But I'm freaking myself out. Please help.