I have external dark purple hemorrhoid home treatment no good, and now its a really foul smell down there and vagina burns what do first?

See Dr: The hemorrhoid may be thrombosed, which requires incision for relief. This and the other issues need evaluation bya dr. See urgent care, or your dr or gyn.

Could be thrombosed: This could be a thrombosed hemorrhoid if it is very dark colored. The other possibility is that you have an abscess, particularly if there is a foul smell. See a doctor to have this looked at. You may need to have a procedure performed for this. In the meantime, try sitz baths (soak in warm water) and ice packs.