so i have this dark itchy dry patch by the side or inner corner of my thighs near my vagina and it’s itchy but not like 24/7 but it itches occasionally and since my period started two days ago it got irritated i think and so it has some a bump like blisters since my pad and underwear rubs against it. i don’t know what it is and my mom says that i just didn’t maintain hygiene for it but it’s been here for almost a month now. please help!