I have a small cut like thing on my right lip near the vagina hole what is this is it normal i just had a baby 4 months ago and don't have sex will it ?

See below: You might have a break down of a cut and use of estrogen cream might help to heal it.

Trauma?: Could it be trauma? A shaving or scratching injury? Is there a sore? It should resolve quickly in that the area has lots of blood flow. Use some aleve (naproxen) if it hurts and consider a topical abx and Hydrocortisone mixed together, something like neosporin. Good luck, it should be fine.