Blister on labia?!

I was ya know doin my thang in bed one night when I felt a small bump on the inside of my labia minora. I took a photo to see what it was and sure enough there was a blood blister lookin thing. I looked it up and it says it’s caused by friction in damp places so I’m guessing it’s normal im not too sure. Anyone have tips on how to heal it or if I should see a doctor? Thankss

*also I am a virgin so theres no chance of an STI*