TMIII PLEASE HELP

Ok so before my period and the beginning of my period I was fine, no itchiness or anything. But after the last few days of my period it started to get itchy (I think it could be from the tampon) so now It’s very itchy on my left vagina lip and on the side of ut with some little bumps kinda red but more so color of my vagina. If coulda also be from a different detergent I’ve used on my underwear. I know it’s not sexually stds or anything sexually because I haven’t had sec in 4 months and me n my ex wore condoms and we are both clean . I got this itch once before after my period from talon. Could it just be an allergic reaction ?? And I can’t get in doctor until Nov.30th so that’s out the question. Any home remedies ???