burning and swollen down there

Hi guys! Yesterday after I took a shower my vagina started to burn? I did use the Simply Summers eve coconut wash, but I don’t use it regularly, only when I’ve been outside all day sweating (which I was).

When I get out of the shower all felt normal down there until like an hour later and I began to feel a pain. I checked it out and my vulva looks a little swollen. I did shave so I may have knicked something but I don’t think it would cause the swelling I have.

I haven’t had sex in a week, but my period is due anyday.