Suggest Remedy For Itchiness And Bruise In The Vagina

Hello, l went on my period 3 days ago, usually l use pads for the first 2 days coz my period is heavy then follow with tampons, but l realised l have a bruise in my vagina, and it uncomfortable, not itchy but really uncomfortable, l last had some sex about 3 days before my period and it wasnt that hectic that l cud have been bruised by it