Vagina on fire

Recently I have felt like some kind of small pimples down there and they itch also when I pee it's very painful on top of all this I'm dry down there. I've been told to use baby oil. ? 
Ps. •Me n my SO don't use any protection (we haven't for the past 2 years) 
I shower basically everyday because of the heat
Any advice? I need help...