Vaginal itch after intense sex

My vagina has a slight itch around the opening for the past two days. I had sex with my SO and he wore a latex condom, I haven’t had penetrative sex for a long while and I’m not sure if I’m allergic to latex or if maybe its because we didn’t use lubrication. I don’t have any STI or STDs and it’s definitely not a yeast infection. Is it normal to have a bit of irritation after a lot of sex?