help????

so lately when i've wiped after going for a wee it's been a little sore (i thought it was just cos of cheap toilet paper) or occasionally had a tiny bit of blood, which i thought was just spotting because it's been around my period. but today i checked it out and it turns out i have a small cut/graze on my labia minora. i'm concerned cos i've never had anything like this (i think it's from sex) and i have no idea how to tell if it's healing? should i go to the doctor or how can i tell if it's okay? 😖