Can desitin (zinc oxide diaper cream) help rash on adult vagina?

Possibly...: However it depends on what the trash is from. If it is from friction and just general irritation, it could. However, i'd it is not, and from am infection of some sort, not likely. It will not hurt you though. Most likely if it does not improve, you should consider having your primary care or gyn doc give you a formal diagnosis. I hope that helps!